Factors of an integer: Difference between revisions
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</pre> |
</pre> |
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=={{header|Batch File}}== |
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Command line version: |
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<lang dos>@echo off |
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set res=Factors of %1: |
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for /L %%i in (1,1,%1) do call :fac %1 %%i |
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echo %res% |
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goto :eof |
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:fac |
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set /a test = %1 %% %2 |
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if %test% equ 0 set res=%res% %2</lang> |
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Outputs: |
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<pre>>factors 32767 |
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Factors of 32767: 1 7 31 151 217 1057 4681 32767 |
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>factors 45 |
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Factors of 45: 1 3 5 9 15 45 |
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>factors 53 |
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Factors of 53: 1 53 |
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>factors 64 |
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Factors of 64: 1 2 4 8 16 32 64 |
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>factors 100 |
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Factors of 100: 1 2 4 5 10 20 25 50 100</pre> |
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Interactive version: |
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<lang dos>@echo off |
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set /p limit=Gimme a number: |
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set res=Factors of %limit%: |
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for /L %%i in (1,1,%limit%) do call :fac %limit% %%i |
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echo %res% |
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goto :eof |
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:fac |
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set /a test = %1 %% %2 |
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if %test% equ 0 set res=%res% %2</lang> |
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Outputs: |
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<pre>>factors |
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Gimme a number:27 |
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Factors of 27: 1 3 9 27 |
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>factors |
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Gimme a number:102 |
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Factors of 102: 1 2 3 6 17 34 51 102</pre> |
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=={{header|BASIC}}== |
=={{header|BASIC}}== |
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1 , 2 , 3 , 6 , 43 , 86 , 127 , 129 , 254 , 258 , 381 , 762 , 5461 , 10922 , |
1 , 2 , 3 , 6 , 43 , 86 , 127 , 129 , 254 , 258 , 381 , 762 , 5461 , 10922 , |
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16383 , 32766 |
16383 , 32766 |
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=={{header|Batch File}}== |
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Command line version: |
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<lang dos>@echo off |
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set res=Factors of %1: |
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for /L %%i in (1,1,%1) do call :fac %1 %%i |
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echo %res% |
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goto :eof |
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:fac |
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set /a test = %1 %% %2 |
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if %test% equ 0 set res=%res% %2</lang> |
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Outputs: |
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<pre>>factors 32767 |
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Factors of 32767: 1 7 31 151 217 1057 4681 32767 |
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>factors 45 |
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Factors of 45: 1 3 5 9 15 45 |
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>factors 53 |
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Factors of 53: 1 53 |
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>factors 64 |
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Factors of 64: 1 2 4 8 16 32 64 |
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>factors 100 |
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Factors of 100: 1 2 4 5 10 20 25 50 100</pre> |
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Interactive version: |
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<lang dos>@echo off |
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set /p limit=Gimme a number: |
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set res=Factors of %limit%: |
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for /L %%i in (1,1,%limit%) do call :fac %limit% %%i |
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echo %res% |
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goto :eof |
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:fac |
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set /a test = %1 %% %2 |
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if %test% equ 0 set res=%res% %2</lang> |
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Outputs: |
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<pre>>factors |
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Gimme a number:27 |
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Factors of 27: 1 3 9 27 |
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>factors |
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Gimme a number:102 |
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Factors of 102: 1 2 3 6 17 34 51 102</pre> |
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=={{header|C}}== |
=={{header|C}}== |
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=={{header|PARI/GP}}== |
=={{header|PARI/GP}}== |
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<lang>divisors(n)</lang> |
<lang>divisors(n)</lang> |
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=={{header|Perl}}== |
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<lang perl>sub factors |
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{ |
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my($n) = @_; |
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return grep { $n % $_ == 0 }(1 .. $n); |
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} |
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print join ' ',factors(64);</lang> |
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=={{header|Perl 6}}== |
=={{header|Perl 6}}== |
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sort($factors); |
sort($factors); |
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return $factors; |
return $factors; |
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}</lang> |
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} |
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=={{header|PicoLisp}}== |
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<lang PicoLisp>(de factors (N) |
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(filter |
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'((D) (=0 (% N D))) |
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(range 1 N) ) )</lang> |
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</lang> |
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=={{header|PL/I}}== |
=={{header|PL/I}}== |
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<lang PL/I> |
<lang PL/I> |
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Here the range of integers is only taken up to the square root of the number, the same filtering applies. Afterwards the corresponding larger factors are calculated and sent down the pipeline along with the small ones found earlier. |
Here the range of integers is only taken up to the square root of the number, the same filtering applies. Afterwards the corresponding larger factors are calculated and sent down the pipeline along with the small ones found earlier. |
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=={{header|Perl}}== |
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<lang perl>sub factors |
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{ |
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my($n) = @_; |
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return grep { $n % $_ == 0 }(1 .. $n); |
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} |
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print join ' ',factors(64);</lang> |
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=={{header|PicoLisp}}== |
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<lang PicoLisp>(de factors (N) |
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(filter |
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'((D) (=0 (% N D))) |
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(range 1 N) ) )</lang> |
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=={{header|Prolog}}== |
=={{header|Prolog}}== |
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<lang Prolog>factor(N, L) :- |
<lang Prolog>factor(N, L) :- |
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