Truncatable primes: Difference between revisions
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m →{{header|Perl}}: comment |
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sub is_tprime { |
sub is_tprime { # Absence of zeroes is tested outside the sub. |
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my ($n, $side) = @_; |
my ($n, $side) = @_; |
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return (is_prime($n) |
return (is_prime($n) |