Talk:99 questions/Solutions/31
From HaskellWiki
Does something as simple but as dump as this should be on the wiki ?
isPrime :: Int -> Bool isPrime n | n <= 1 = False isPrime n = isPrime' 2 n where isPrime' x n | x*x > n = True | otherwise = (n `rem` x) /= 0 && isPrime' (x+1) n
