I stumbled across a new (to me) way of testing a number to see if it is prime, so I had to write a new program using it.

But it does not work. My computer is accusing me of dividing by zero. I'd yell at it, but it is undoubtedly my fault. I can't see why, though. Any clue as to why this does not work? 
use strict;
use warnings;
my @prime;
for my $i(2..100){
    if($i==2){
        push @prime, $i;
    }
    else{
        push @prime, $i;
        for(@prime){
            if(int($i/$_)==($i/$_) and $i!=$_){
                for(@prime){
                    $_=~s/$i//;
                }
            }
        }
    }
}
for(@prime){
    print "$_\n";
}

[download]

Thanks in advance.

In reply to Primes. Again. by Andrew_Levenson

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