11 lines
286 B
Perl
11 lines
286 B
Perl
use strict;
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use warnings;
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use ntheory <is_prime fromdigits>;
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my $limit = 1000;
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print "Repunit prime digits (up to $limit) in:\n";
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for my $base (2..16) {
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printf "Base %2d: %s\n", $base, join ' ', grep { is_prime $_ and is_prime fromdigits(('1'x$_), $base) and " $_" } 1..$limit
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}
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