$o=1;{(grep!($o%$_),2..++$o/2)||print$o.$/;redo}

[download]
That's 48.

if we allow a shebang line: 

#!/usr/bin/perl -l
$o=1;{(grep!($o%$_),2..++$o/2)||print$o;redo}

[download]
45 :)

In reply to Re: Prime number generator by rhesa
in thread Prime number generator by jimt

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