Least m such that n! + m is prime: Difference between revisions
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Thundergnat (talk | contribs) m (→{{header|Raku}}: twiddles) |
Thundergnat (talk | contribs) m (→{{header|Raku}}: clarify) |
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my @least-m = lazy (^∞).hyper(:2batch).map: {(1..*).first: -> \n {(@f[$_] + n).is-prime}}; |
my @least-m = lazy (^∞).hyper(:2batch).map: {(1..*).first: -> \n {(@f[$_] + n).is-prime}}; |
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say "Least m such that n! + m is prime; first fifty:\n" |
say "Least positive m such that n! + m is prime; first fifty:\n" |
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~ @least-m[^50].batch(10)».fmt("%3d").join: "\n"; |
~ @least-m[^50].batch(10)».fmt("%3d").join: "\n"; |
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}</syntaxhighlight> |
}</syntaxhighlight> |
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{{out}} |
{{out}} |
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<pre>Least m such that n! + m is prime; first fifty: |
<pre>Least positive m such that n! + m is prime; first fifty: |
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1 1 1 1 5 7 7 11 23 17 |
1 1 1 1 5 7 7 11 23 17 |
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11 1 29 67 19 43 23 31 37 89 |
11 1 29 67 19 43 23 31 37 89 |