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  1. isPrime n
  2.     | n >= 2 = null [ x | x <- [2..root], n `mod` x == 0 ]
  3.     | otherwise = error "Wut?"
  4.         where root = ceiling $ sqrt $ fromIntegral n
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https://ideone.com/58bmQV
language:
Haskell (ghc 8.4.4)
created:
11 years ago
visibility:
public

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