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more idiomatic haskell 003

master
Evan Hemsley 2020-10-26 23:24:12 -07:00
parent 9763b56dce
commit 7ed2845210
1 changed files with 1 additions and 1 deletions
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haskell/euler003.hs
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@ -3,7 +3,7 @@ module Main where
primes = 2 : [i | i <- [3..], primes = 2 : [i | i <- [3..],
and [rem i p > 0 | p <- takeWhile (\p -> p^2 <= i) primes]] and [rem i p > 0 | p <- takeWhile (\p -> p^2 <= i) primes]]
primeFactors n = filter (\a -> n `mod` a == 0) (takeWhile (\m -> m * m < n) primes) primeFactors n = filter (\a -> mod n a == 0) (takeWhile (\m -> m * m < n) primes)
main = do main = do
print (last (primeFactors 600851475143)) print (last (primeFactors 600851475143))