Anti-primes: Difference between revisions
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The first 20 anti-primes are: {1,2,4,6,12,24,36,48,60,120,180,240,360,720,840,1260,1680,2520,5040,7560} |
The first 20 anti-primes are: {1,2,4,6,12,24,36,48,60,120,180,240,360,720,840,1260,1680,2520,5040,7560} |
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</pre> |
</pre> |
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=={{header|PicoLisp}}== |
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<lang PicoLisp>(de factors (N) |
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(let C 1 |
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(when (>= N 2) |
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(inc 'C) |
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(for (I 2 (>= (/ N 2) I) (inc I)) |
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(and (=0 (% N I)) (inc 'C)) ) ) |
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C ) ) |
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(de anti (X) |
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(let (M 0 I 0 N 0) |
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(make |
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(while (> X I) |
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(inc 'N) |
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(let R (factors N) |
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(when (> R M) |
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(link N) |
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(setq M R) |
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(inc 'I) ) ) ) ) ) ) |
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(println (anti 20))</lang> |
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{{out}} |
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<pre>(1 2 4 6 12 24 36 48 60 120 180 240 360 720 840 1260 1680 2520 5040 7560)</pre> |
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=={{header|Python}}== |
=={{header|Python}}== |
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