Prime numbers which contain 123: Difference between revisions
Added 11l
No edit summary |
Alextretyak (talk | contribs) (Added 11l) |
||
Line 8:
As above, but only show the <u>count</u> of those primes '''n''' that contain the (above) string, where '''n < 1,000,000'''.
<br><br>
=={{header|11l}}==
<lang 11l>F is_prime(a)
I a == 2
R 1B
I a < 2 | a % 2 == 0
R 0B
L(i) (3 .. Int(sqrt(a))).step(2)
I a % i == 0
R 0B
R 1B
F is_prime123(n)
R ‘123’ C String(n) & is_prime(n)
V c = 0
L(n) 100'000
I is_prime123(n)
c++
print(‘#5’.format(n), end' I c % 8 == 0 {"\n"} E ‘ ’)
print()
print(‘Found ’c‘ "123" primes less than 100000’)
c = 0
L(n) 1'000'000
I is_prime123(n)
c++
print()
print(‘Found ’c‘ "123" primes less than 1000000’)</lang>
{{out}}
<pre>
1123 1231 1237 8123 11239 12301 12323 12329
12343 12347 12373 12377 12379 12391 17123 20123
22123 28123 29123 31123 31231 31237 34123 37123
40123 41231 41233 44123 47123 49123 50123 51239
56123 59123 61231 64123 65123 70123 71233 71237
76123 81233 81239 89123 91237 98123
Found 46 "123" primes less than 100000
Found 451 "123" primes less than 1000000
</pre>
=={{header|ALGOL 68}}==
| |||