: [Integer]
primes = 2 : filter (\n -> head (factorsOf n) == n) [3,5..]

splitF
primes :: [Integer]
primes = 2 : filter (\n -> head (factorsOf n) == n) [3,5..]
primes = 2 : filter (\n -> head (factorsOf n) == n) [3,5..]