strict and warnings compliant at 77 characters ... 
$_{$.=$_}||do{{($_{$.+=$_}=$.+$_<=$,)&&redo}}for@.=2..($,=pop);grep!$_
+{$_},@.

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My wife's blog

In reply to Re^3: Sieve of Eratosthenes Golf? by dragonchild
in thread Sieve of Eratosthenes Golf? by Cody Pendant

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