Just for the sake of completeness - my 58-char sieve of Eratosthenes. The one-liner prints all integers less than given argument. 
@_=(2..shift);while(@_){print$_[0].$/;@_=grep{$_%$_[0]}@_}

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     s;;Just-me-not-h-Ni-m-P-Ni-lm-I-ar-O-Ni;;tr?IerONim-?HAcker ?d;print

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

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