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sub next_prime_iterator { my $num = shift(@_); ... $divisor += 2; } }
my $x= 1+~0; $x *= 2 while $x != $x+1; ... print $/ __END__ 1 0 0.75; 2 0 0; 3 2 0.25; 4 2 0.75; 5 1 0;