Add a constraint so we don't try to factor numbers with no prime factors
Add a constraint so we don't try to factor numbers with no prime factors

shlomif/perl6-examples,shlomif/perl6-examples,perl6/perl6-examples,perl6/perl6-examples,shlomif/perl6-examples,perl6/perl6-examples,perl6/perl6-examples,shlomif/perl6-examples,perl6/perl6-examples,shlomif/perl6-examples