De Polignac numbers: Difference between revisions
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Alextretyak (talk | contribs) (Added 11l) |
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;* [[oeis:A006285|OEIS:A006285 - Odd numbers not of form p + 2^k (de Polignac numbers)]] |
;* [[oeis:A006285|OEIS:A006285 - Odd numbers not of form p + 2^k (de Polignac numbers)]] |
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=={{header|11l}}== |
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{{trans|C++}} |
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<syntaxhighlight lang="11l"> |
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F is_prime(p) |
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I p < 2 | p % 2 == 0 |
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R p == 2 |
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L(i) (3 .. Int(sqrt(p))).step(2) |
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I p % i == 0 |
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R 0B |
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R 1B |
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F is_depolignac_number(n) |
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V p = 1 |
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L p < n |
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I is_prime(n - p) |
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R 0B |
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p <<= 1 |
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R 1B |
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print(‘First 50 de Polignac numbers:’) |
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V count = 0 |
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L(n) (1..).step(2) |
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I is_depolignac_number(n) |
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count++ |
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I count <= 50 |
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print(f:‘{commatize(n):5}’, end' I count % 10 == 0 {"\n"} E ‘ ’) |
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E I count == 1000 |
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print("\nOne thousandth: "commatize(n)) |
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E I count == 10000 |
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print("\nTen thousandth: "commatize(n)) |
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L.break |
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</syntaxhighlight> |
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{{out}} |
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<pre> |
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First 50 de Polignac numbers: |
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1 127 149 251 331 337 373 509 599 701 |
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757 809 877 905 907 959 977 997 1,019 1,087 |
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1,199 1,207 1,211 1,243 1,259 1,271 1,477 1,529 1,541 1,549 |
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1,589 1,597 1,619 1,649 1,657 1,719 1,759 1,777 1,783 1,807 |
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1,829 1,859 1,867 1,927 1,969 1,973 1,985 2,171 2,203 2,213 |
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One thousandth: 31,941 |
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Ten thousandth: 273,421 |
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</pre> |
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=={{header|Action!}}== |
=={{header|Action!}}== |
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