Primes: n*2^m+1: Difference between revisions
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=={{header|Raku}}==
First
<syntaxhighlight lang="raku" line>-> $n { (^∞).map: -> $m { if (my $p = $n × 2 ** $m + 1).is-prime { say "$n: $p"; last } } } for 1..400</syntaxhighlight>
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