Additive primes: Difference between revisions
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353 359 373 379 397 401 409 421 443 449 461 463 467 487 |
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There are 54 additive primes below 500</pre> |
There are 54 additive primes below 500</pre> |
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=={{header|EasyLang}}== |
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<syntaxhighlight lang="easylang"> |
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proc isprime x . r . |
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r = 1 |
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for i = 2 to sqrt x |
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if x mod i = 0 |
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r = 0 |
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break 2 |
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. |
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. |
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. |
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proc digsum n . sum . |
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sum = 0 |
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while n > 0 |
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sum += n mod 10 |
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n = n div 10 |
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. |
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. |
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for i = 2 to 500 |
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call isprime i r |
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if r = 1 |
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call digsum i s |
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call isprime s r |
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if r = 1 |
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write i & " " |
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. |
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. |
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. |
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print "" |
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</syntaxhighlight> |
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=={{header|Erlang}}== |
=={{header|Erlang}}== |
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