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ChrisBuchholz/gist:4250323

Created December 10, 2012 12:38
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primes
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gistfile1.hs
primes = take (10^6) $ [n | n <- [2..], prime n]
where
prime n
| n < 2 = False
| n == 2 = True
| null [x | x <- [2..(floor . sqrt $ fromIntegral n)], n `mod` x == 0] = True
| otherwise = False
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