Minimum multiple of m where digital sum equals m: Difference between revisions

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Line 442: Line 442:
A(69) = 1157971
A(69) = 1157971
A(70) = 12842857</pre>
A(70) = 12842857</pre>

=={{header|Pascal}}==
==={{header|Free Pascal}}===
Constructing minimal start number with sum of digits = m -> k+9+9+9+9+9+9 <BR>
Up to 100 at home.
<lang pascal>
program m_by_n_sumofdgts_m;
//Like https://oeis.org/A131382/b131382.txt
{$IFDEF FPC} {$MODE DELPHI} {$OPTIMIZATION ON,ALL} {$ENDIF}
const
BASE = 10;
BASE4 = BASE*BASE*BASE*BASE;
var
SoD: array[0..BASE4-1] of byte;
procedure Init_SoD;
var
d0,d1,i,j : NativeInt;
begin
i := 0;
For d1 := 0 to BASE-1 do
For d0 := 0 to BASE-1 do
begin SoD[i]:= d1+d0;inc(i); end;

j := Base*Base;
For i := 1 to Base*Base-1 do
For d1 := 0 to BASE-1 do
For d0 := 0 to BASE-1 do
begin
SoD[j] := SoD[i]+d1+d0;
inc(j);
end;
end;

function SumOfDigits(n:nativeUint):NativeUint;
var
q : NativeUint;
begin
result := 0;
while n>0 do
begin
q := n DIV BASE4;
result += SoD[n-BASE4*q];
n := q;
end;
end;

var
i : NativeInt;
m,n: NativeUint;
Begin
Init_SoD;
for m := 1 to 90 do
begin
n := m;
//constructing minimal number with sum of digits = m ;k+9+9+9+9+9+9
//21 -> 299
if n>BASE then
begin
i := 1;
while n>BASE-1 do
begin
i *= BASE;
dec(n,BASE-1);
end;
n := i*(n+1)-1;
//make n multiple of m
n := (n div m)*m;
//m ending in 0
i := m;
while i mod BASE = 0 do
begin
n *= BASE;
i := i div BASE;
end;
end;
while SumOfDigits(n)<> m do
inc(n,m);
write(n DIV m:11);
if m mod 10 = 0 then
writeln;
end;
end.
</lang>
{{out|@TIO.RUN}}
<pre>
Real time: 4.161 s CPU share: 99.35 %
1 1 1 1 1 1 1 1 1 19
19 4 19 19 13 28 28 11 46 199
19 109 73 37 199 73 37 271 172 1333
289 559 1303 847 1657 833 1027 1576 1282 17497
4339 2119 2323 10909 11111 12826 14617 14581 16102 199999
17449 38269 56413 37037 1108909 142498 103507 154981 150661 1333333
163918 322579 315873 937342 1076923 1030303 880597 1469116 1157971 12842857
4084507 5555554 6849163 37027027 13333333 11710513 11686987 11525641 12656962 374999986
12345679 60852439 72168553 82142857 117647047 93022093 103445977 227272726 112247191 1111111111

@home: ..100
...
12345679 60852439 72168553 82142857 117647047 93022093 103445977 227272726 112247191 1111111111
658010989 652173913 731172043 849893617 2947368421 2083333228 1030927834 3969377551 11101010101 199999999999

real 1m15,075 // 99 takes the longest time.
</pre>


=={{header|Perl}}==
=={{header|Perl}}==

Revision as of 10:24, 29 January 2022

Minimum multiple of m where digital sum equals m is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

Generate the sequence a(n) when each element is the minimum integer multiple m such that the digit sum of n times m is equal to n.


Task
  • Find the first 40 elements of the sequence.


Stretch
  • Find the next 30 elements of the sequence.


See also



ALGOL 68

<lang algol68>BEGIN # find the smallest m where mn = digit sum of n, n in 1 .. 70 #

   # returns the digit sum of n, n must be >= 0 #
   OP   DIGITSUM = ( INT n )INT:
        IF  n < 10 THEN n
        ELSE
           INT result := n MOD  10;
           INT v      := n OVER 10;
           WHILE v > 0 DO
               result +:= v MOD  10;
               v       := v OVER 10
           OD;
           result
        FI # DIGITSUM # ;
   # show the minimum multiples of n where the digit sum of the multiple is n #
   FOR n TO 70 DO
       BOOL found multiple := FALSE;
       FOR m WHILE NOT found multiple DO
           IF DIGITSUM ( m * n ) = n THEN
               found multiple := TRUE;
               print( ( " ", whole( m, -8 ) ) );
               IF n MOD 10 = 0 THEN print( ( newline ) ) FI
           FI
       OD
   OD

END</lang>

Output:
        1        1        1        1        1        1        1        1        1       19
       19        4       19       19       13       28       28       11       46      199
       19      109       73       37      199       73       37      271      172     1333
      289      559     1303      847     1657      833     1027     1576     1282    17497
     4339     2119     2323    10909    11111    12826    14617    14581    16102   199999
    17449    38269    56413    37037  1108909   142498   103507   154981   150661  1333333
   163918   322579   315873   937342  1076923  1030303   880597  1469116  1157971 12842857


APL

Works with: Dyalog APL

<lang APL>{n←⍵ ⋄ (+∘1)⍣{n=+/10⊥⍣¯1⊢⍺×n}⊢0 } ¨ 7 10⍴⍳70</lang>

Output:
     1      1      1      1       1       1      1       1       1       19
    19      4     19     19      13      28     28      11      46      199
    19    109     73     37     199      73     37     271     172     1333
   289    559   1303    847    1657     833   1027    1576    1282    17497
  4339   2119   2323  10909   11111   12826  14617   14581   16102   199999
 17449  38269  56413  37037 1108909  142498 103507  154981  150661  1333333
163918 322579 315873 937342 1076923 1030303 880597 1469116 1157971 12842857

BASIC

BASIC256

<lang BASIC256>c = 0 n = 1 while c < 70

   m = 1
   while 1
       nm = n*m

t = 0

       while nm
           t += nm mod 10
           nm = floor(nm / 10)
       end while
       if t = n then exit while
       m += 1
   end while
   c += 1
   print rjust(string(m), 8); " ";
   if c mod 10 = 0 then print
   n += 1

end while end</lang>

Output:
Igual que la entrada de FreeBASIC.

FreeBASIC

Translation of: Phix

<lang freebasic>#define floor(x) ((x*2.0-0.5) Shr 1)

Dim As Integer c = 0, n = 1 Do While c < 70

   Dim As Integer m = 1
   Do
       Dim As Integer nm = n*m, t = 0
       While nm
           t += nm Mod 10
           nm = floor(nm/10)
       Wend
       If t = n Then Exit Do : End If
       m += 1
   Loop
   c += 1
   Print Using "######## "; m;
   If c Mod 10 = 0 Then Print
   n += 1

Loop Sleep </lang>

Output:
       1        1        1        1        1        1        1        1        1       19
      19        4       19       19       13       28       28       11       46      199
      19      109       73       37      199       73       37      271      172     1333
     289      559     1303      847     1657      833     1027     1576     1282    17497
    4339     2119     2323    10909    11111    12826    14617    14581    16102   199999
   17449    38269    56413    37037  1108909   142498   103507   154981   150661  1333333
  163918   322579   315873   937342  1076923  1030303   880597  1469116  1157971 12842857

Yabasic

<lang yabasic>c = 0 n = 1 while c < 70

   m = 1
   do
       nm = n*m

t = 0

       while nm
           t = t + mod(nm, 10)
           nm = floor(nm / 10)
       wend
       if t = n then break : fi
       m = m + 1
   loop
   c = c + 1
   print m using "########", " ";
   if mod(c, 10) = 0 then print : fi
   n = n + 1

wend end</lang>

Output:
Igual que la entrada de FreeBASIC.

C

<lang c>#include <stdio.h>

unsigned digit_sum(unsigned n) {

   unsigned sum = 0;
   do { sum += n % 10; }
   while(n /= 10);
   return sum;

}

unsigned a131382(unsigned n) {

   unsigned m;
   for (m = 1; n != digit_sum(m*n); m++);
   return m;

}

int main() {

   unsigned n;
   for (n = 1; n <= 70; n++) {
       printf("%9u", a131382(n));
       if (n % 10 == 0) printf("\n");
   }
   return 0;

}</lang>

Output:
        1        1        1        1        1        1        1        1        1       19
       19        4       19       19       13       28       28       11       46      199
       19      109       73       37      199       73       37      271      172     1333
      289      559     1303      847     1657      833     1027     1576     1282    17497
     4339     2119     2323    10909    11111    12826    14617    14581    16102   199999
    17449    38269    56413    37037  1108909   142498   103507   154981   150661  1333333
   163918   322579   315873   937342  1076923  1030303   880597  1469116  1157971 12842857

CLU

<lang clu>digit_sum = proc (n: int) returns (int)

   sum: int := 0
   while n > 0 do
       sum := sum + n // 10
       n := n / 10
   end
   return(sum)

end digit_sum

a131382 = iter () yields (int)

   n: int := 1
   while true do
       m: int := 1
       while digit_sum(m * n) ~= n do
           m := m + 1
       end
       yield(m)
       n := n + 1
   end

end a131382

start_up = proc ()

   po: stream := stream$primary_output()
   n: int := 0
   
   for m: int in a131382() do
       stream$putright(po, int$unparse(m), 9)
       n := n + 1
       if n = 70 then break end
       if n // 10 = 0 then stream$putl(po, "") end
   end

end start_up</lang>

Output:
        1        1        1        1        1        1        1        1        1       19
       19        4       19       19       13       28       28       11       46      199
       19      109       73       37      199       73       37      271      172     1333
      289      559     1303      847     1657      833     1027     1576     1282    17497
     4339     2119     2323    10909    11111    12826    14617    14581    16102   199999
    17449    38269    56413    37037  1108909   142498   103507   154981   150661  1333333
   163918   322579   315873   937342  1076923  1030303   880597  1469116  1157971 12842857

Cowgol

<lang cowgol>include "cowgol.coh";

sub digit_sum(n: uint32): (sum: uint8) is

   sum := 0;
   while n != 0 loop
       sum := sum + (n % 10) as uint8;
       n := n / 10;
   end loop;

end sub;

sub a131382(n: uint8): (m: uint32) is

   m := 1;
   while n != digit_sum(n as uint32 * m) loop
       m := m + 1;
   end loop;

end sub;

var n: uint8 := 1; while n <= 70 loop

   print_i32(a131382(n));
   if n % 10 == 0 then print_nl(); 
   else print_char(' ');
   end if;
   n := n + 1;

end loop;</lang>

Output:
1 1 1 1 1 1 1 1 1 19
19 4 19 19 13 28 28 11 46 199
19 109 73 37 199 73 37 271 172 1333
289 559 1303 847 1657 833 1027 1576 1282 17497
4339 2119 2323 10909 11111 12826 14617 14581 16102 199999
17449 38269 56413 37037 1108909 142498 103507 154981 150661 1333333
163918 322579 315873 937342 1076923 1030303 880597 1469116 1157971 12842857

Haskell

<lang haskell>import Data.Bifunctor (first) import Data.List (elemIndex, intercalate, transpose) import Data.List.Split (chunksOf) import Data.Maybe (fromJust) import Text.Printf (printf)


A131382 ------------------------

a131382 :: [Int] a131382 =

 fromJust . (elemIndex <*> productDigitSums)
   <$> [1 ..]

productDigitSums :: Int -> [Int] productDigitSums n = digitSum . (n *) <$> [0 ..]


TEST -------------------------

main :: IO () main =

 (putStrLn . table " ") $
   chunksOf 10 $ show <$> take 40 a131382

GENERIC ------------------------

digitSum :: Int -> Int digitSum 0 = 0 digitSum n = uncurry (+) (first digitSum $ quotRem n 10)

table :: String -> String -> String table gap rows =

 let ws = maximum . fmap length <$> transpose rows
     pw = printf . flip intercalate ["%", "s"] . show
  in unlines $ intercalate gap . zipWith pw ws <$> rows</lang>
Output:
  1   1    1   1    1   1    1    1    1    19
 19   4   19  19   13  28   28   11   46   199
 19 109   73  37  199  73   37  271  172  1333
289 559 1303 847 1657 833 1027 1576 1282 17497

J

Implementation:

<lang J> findfirst=: Template:($:@((+1+i.@+:)@

A131382=: {{y&Template:X = sumdigits x*y findfirst}}"0

sumdigits=: +/@|:@(10&#.inv)</lang>

Task example: <lang J> A131382 1+i.4 10

 1   1    1   1    1   1    1    1    1    19
19   4   19  19   13  28   28   11   46   199
19 109   73  37  199  73   37  271  172  1333

289 559 1303 847 1657 833 1027 1576 1282 17497</lang>

Stretch example: <lang J> A131382 41+i.3 10

 4339   2119   2323  10909   11111   12826  14617   14581   16102   199999
17449  38269  56413  37037 1108909  142498 103507  154981  150661  1333333

163918 322579 315873 937342 1076923 1030303 880597 1469116 1157971 12842857</lang>

Julia

<lang julia>minproddigsum(n) = findfirst(i -> sum(digits(n * i)) == n, 1:typemax(Int32))

for j in 1:70

   print(lpad(minproddigsum(j), 10), j % 7 == 0 ? "\n" : "")

end

</lang>

Output:
         1         1         1         1         1         1         1
         1         1        19        19         4        19        19
        13        28        28        11        46       199        19
       109        73        37       199        73        37       271
       172      1333       289       559      1303       847      1657
       833      1027      1576      1282     17497      4339      2119
      2323     10909     11111     12826     14617     14581     16102
    199999     17449     38269     56413     37037   1108909    142498
    103507    154981    150661   1333333    163918    322579    315873
    937342   1076923   1030303    880597   1469116   1157971  12842857

MAD

<lang MAD> NORMAL MODE IS INTEGER

           VECTOR VALUES FMT = $2HA(,I2,4H) = ,I8*$
           
           THROUGH NUMBER, FOR N = 1, 1, N.G.70

MULT THROUGH MULT, FOR M = 1, 1, N.E.DSUM.(M*N) NUMBER PRINT FORMAT FMT, N, M

           INTERNAL FUNCTION(X)
           ENTRY TO DSUM.
           SUM = 0
           V = X

DIGIT WHENEVER V.E.0, FUNCTION RETURN SUM

           W = V/10
           SUM = SUM + V - W*10
           V = W
           TRANSFER TO DIGIT
           END OF FUNCTION
           END OF PROGRAM</lang>
Output:
A( 1) =        1
A( 2) =        1
A( 3) =        1
A( 4) =        1
A( 5) =        1
A( 6) =        1
A( 7) =        1
A( 8) =        1
A( 9) =        1
A(10) =       19
A(11) =       19
A(12) =        4
A(13) =       19
A(14) =       19
A(15) =       13
A(16) =       28
A(17) =       28
A(18) =       11
A(19) =       46
A(20) =      199
A(21) =       19
A(22) =      109
A(23) =       73
A(24) =       37
A(25) =      199
A(26) =       73
A(27) =       37
A(28) =      271
A(29) =      172
A(30) =     1333
A(31) =      289
A(32) =      559
A(33) =     1303
A(34) =      847
A(35) =     1657
A(36) =      833
A(37) =     1027
A(38) =     1576
A(39) =     1282
A(40) =    17497
A(41) =     4339
A(42) =     2119
A(43) =     2323
A(44) =    10909
A(45) =    11111
A(46) =    12826
A(47) =    14617
A(48) =    14581
A(49) =    16102
A(50) =   199999
A(51) =    17449
A(52) =    38269
A(53) =    56413
A(54) =    37037
A(55) =  1108909
A(56) =   142498
A(57) =   103507
A(58) =   154981
A(59) =   150661
A(60) =  1333333
A(61) =   163918
A(62) =   322579
A(63) =   315873
A(64) =   937342
A(65) =  1076923
A(66) =  1030303
A(67) =   880597
A(68) =  1469116
A(69) =  1157971
A(70) = 12842857

Pascal

Free Pascal

Constructing minimal start number with sum of digits = m -> k+9+9+9+9+9+9
Up to 100 at home. <lang pascal> program m_by_n_sumofdgts_m; //Like https://oeis.org/A131382/b131382.txt {$IFDEF FPC} {$MODE DELPHI} {$OPTIMIZATION ON,ALL} {$ENDIF} const

  BASE = 10;
  BASE4 = BASE*BASE*BASE*BASE;

var

 SoD: array[0..BASE4-1] of byte;
 

procedure Init_SoD; var

 d0,d1,i,j : NativeInt;

begin

 i := 0;
 For d1 := 0 to BASE-1 do   
   For d0 := 0 to BASE-1 do 
     begin SoD[i]:= d1+d0;inc(i); end;   
 j := Base*Base;    
 For i := 1 to Base*Base-1 do
   For d1 := 0 to BASE-1 do   
     For d0 := 0 to BASE-1 do 
     begin
       SoD[j] := SoD[i]+d1+d0;
       inc(j);
     end; 

end;

function SumOfDigits(n:nativeUint):NativeUint; var

 q : NativeUint;

begin

 result := 0;
 while n>0 do
 begin
   q := n DIV BASE4;
   result += SoD[n-BASE4*q];
   n := q;
 end;  

end;

var

 i : NativeInt;
 m,n: NativeUint;

Begin

 Init_SoD;
 for m := 1 to 90 do
 begin
   n := m;
   //constructing minimal number with sum of digits = m ;k+9+9+9+9+9+9
   //21 -> 299 
   if n>BASE then
   begin
     i := 1;
     while n>BASE-1 do
     begin
       i *= BASE;
       dec(n,BASE-1);
     end;
     n := i*(n+1)-1;
     //make n multiple of m
     n := (n div m)*m;
     //m ending in 0 
     i := m;
     while i mod BASE = 0 do
     begin
       n *= BASE;
       i := i div BASE;
     end;  
   end;  
   while SumOfDigits(n)<> m do
     inc(n,m);
   write(n DIV m:11);
   if m mod 10 = 0 then
     writeln;
 end;    

end. </lang>

@TIO.RUN:
Real time: 4.161 s CPU share: 99.35 %
          1          1          1          1          1          1          1          1          1         19
         19          4         19         19         13         28         28         11         46        199
         19        109         73         37        199         73         37        271        172       1333
        289        559       1303        847       1657        833       1027       1576       1282      17497
       4339       2119       2323      10909      11111      12826      14617      14581      16102     199999
      17449      38269      56413      37037    1108909     142498     103507     154981     150661    1333333
     163918     322579     315873     937342    1076923    1030303     880597    1469116    1157971   12842857
    4084507    5555554    6849163   37027027   13333333   11710513   11686987   11525641   12656962  374999986
   12345679   60852439   72168553   82142857  117647047   93022093  103445977  227272726  112247191 1111111111

@home: ..100
...
   12345679   60852439   72168553   82142857  117647047   93022093  103445977  227272726   112247191   1111111111
  658010989  652173913  731172043  849893617 2947368421 2083333228 1030927834 3969377551 11101010101 199999999999

real    1m15,075 // 99 takes the longest time.

Perl

<lang perl>#!/usr/bin/perl

use strict; # https://rosettacode.org/wiki/Minimum_multiple_of_m_where_digital_sum_equals_m use warnings; use ntheory qw( sumdigits );

my @answers = map

 {
 my $m = 1;
 $m++ until sumdigits($m*$_) == $_;
 $m;
 } 1 .. 70;

print "@answers\n\n" =~ s/.{65}\K /\n/gr;</lang>

Output:
1 1 1 1 1 1 1 1 1 19 19 4 19 19 13 28 28 11 46 199 19 109 73 37 199
73 37 271 172 1333 289 559 1303 847 1657 833 1027 1576 1282 17497
4339 2119 2323 10909 11111 12826 14617 14581 16102 199999 17449 38269
56413 37037 1108909 142498 103507 154981 150661 1333333 163918 322579
315873 937342 1076923 1030303 880597 1469116 1157971 12842857

Phix

Translation of: XPL0
with javascript_semantics
integer c = 0, n = 1
while c<70 do
    integer m = 1
    while true do
        integer nm = n*m, t = 0
        while nm do
            t += remainder(nm,10)
            nm = floor(nm/10)
        end while
        if t=n then exit end if
        m += 1
    end while
    c += 1
    printf(1,"%-8d%s",{m,iff(remainder(c,10)=0?"\n":"")})
    n += 1
end while
Output:
1       1       1       1       1       1       1       1       1       19
19      4       19      19      13      28      28      11      46      199
19      109     73      37      199     73      37      271     172     1333
289     559     1303    847     1657    833     1027    1576    1282    17497
4339    2119    2323    10909   11111   12826   14617   14581   16102   199999
17449   38269   56413   37037   1108909 142498  103507  154981  150661  1333333
163918  322579  315873  937342  1076923 1030303 880597  1469116 1157971 12842857

Python

<lang python>A131382

from itertools import count, islice


  1. a131382 :: [Int]

def a131382():

   An infinite series of the terms of A131382
   return (
       elemIndex(x)(
           productDigitSums(x)
       ) for x in count(1)
   )


  1. productDigitSums :: Int -> [Int]

def productDigitSums(n):

   The sum of the decimal digits of n
   return (digitSum(n * x) for x in count(0))


  1. ------------------------- TEST -------------------------
  2. main :: IO ()

def main():

   First 40 terms of A131382
   print(
       table(10)([
           str(x) for x in islice(
               a131382(),
               40
           )
       ])
   )


  1. ----------------------- GENERIC ------------------------
  1. chunksOf :: Int -> [a] -> a

def chunksOf(n):

   A series of lists of length n, subdividing the
      contents of xs. Where the length of xs is not evenly
      divisible, the final list will be shorter than n.
   
   def go(xs):
       return (
           xs[i:n + i] for i in range(0, len(xs), n)
       ) if 0 < n else None
   return go


  1. digitSum :: Int -> Int

def digitSum(n):

   The sum of the digital digits of n.
   
   return sum(int(x) for x in list(str(n)))


  1. elemIndex :: a -> [a] -> (None | Int)

def elemIndex(x):

   Just the first index of x in xs,
      or None if no elements match.
   
   def go(xs):
       try:
           return next(
               i for i, v in enumerate(xs) if x == v
           )
       except StopIteration:
           return None
   return go


  1. table :: Int -> [String] -> String

def table(n):

   A list of strings formatted as
      right-justified rows of n columns.
   
   def go(xs):
       w = len(xs[-1])
       return '\n'.join(
           ' '.join(row) for row in chunksOf(n)([
               s.rjust(w, ' ') for s in xs
           ])
       )
   return go


  1. MAIN ---

if __name__ == '__main__':

   main()</lang>
Output:
    1     1     1     1     1     1     1     1     1    19
   19     4    19    19    13    28    28    11    46   199
   19   109    73    37   199    73    37   271   172  1333
  289   559  1303   847  1657   833  1027  1576  1282 17497

Raku

<lang perl6>sub min-mult-dsum ($n) { (1..∞).first: (* × $n).comb.sum == $n }

say .fmt("%2d: ") ~ .&min-mult-dsum for flat 1..40, 41..70;</lang>

Output:
 1: 1
 2: 1
 3: 1
 4: 1
 5: 1
 6: 1
 7: 1
 8: 1
 9: 1
10: 19
11: 19
12: 4
13: 19
14: 19
15: 13
16: 28
17: 28
18: 11
19: 46
20: 199
21: 19
22: 109
23: 73
24: 37
25: 199
26: 73
27: 37
28: 271
29: 172
30: 1333
31: 289
32: 559
33: 1303
34: 847
35: 1657
36: 833
37: 1027
38: 1576
39: 1282
40: 17497
41: 4339
42: 2119
43: 2323
44: 10909
45: 11111
46: 12826
47: 14617
48: 14581
49: 16102
50: 199999
51: 17449
52: 38269
53: 56413
54: 37037
55: 1108909
56: 142498
57: 103507
58: 154981
59: 150661
60: 1333333
61: 163918
62: 322579
63: 315873
64: 937342
65: 1076923
66: 1030303
67: 880597
68: 1469116
69: 1157971
70: 12842857

Wren

Library: Wren-math
Library: Wren-seq
Library: Wren-fmt

<lang ecmascript>import "./math" for Int import "./seq" for Lst import "./fmt" for Fmt

var res = [] for (n in 1..70) {

   var m = 1
   while (Int.digitSum(m * n) != n) m = m + 1
   res.add(m)

} for (chunk in Lst.chunks(res, 10)) Fmt.print("$,10d", chunk)</lang>

Output:
         1          1          1          1          1          1          1          1          1         19
        19          4         19         19         13         28         28         11         46        199
        19        109         73         37        199         73         37        271        172      1,333
       289        559      1,303        847      1,657        833      1,027      1,576      1,282     17,497
     4,339      2,119      2,323     10,909     11,111     12,826     14,617     14,581     16,102    199,999
    17,449     38,269     56,413     37,037  1,108,909    142,498    103,507    154,981    150,661  1,333,333
   163,918    322,579    315,873    937,342  1,076,923  1,030,303    880,597  1,469,116  1,157,971 12,842,857

XPL0

<lang XPL0>func SumDigits(N); \Return sum of digits in N int N, S; [S:= 0; while N do

   [N:= N/10;
   S:= S + rem(0);
   ];

return S; ];

int C, N, M; [C:= 0; N:= 1; repeat M:= 1;

       while SumDigits(N*M) # N do M:= M+1;
       IntOut(0, M);
       C:= C+1;
       if rem (C/10) then ChOut(0, 9\tab\) else CrLf(0);
       N:= N+1;

until C >= 40+30; ]</lang>

Output:
1       1       1       1       1       1       1       1       1       19
19      4       19      19      13      28      28      11      46      199
19      109     73      37      199     73      37      271     172     1333
289     559     1303    847     1657    833     1027    1576    1282    17497
4339    2119    2323    10909   11111   12826   14617   14581   16102   199999
17449   38269   56413   37037   1108909 142498  103507  154981  150661  1333333
163918  322579  315873  937342  1076923 1030303 880597  1469116 1157971 12842857