def primes(n):
    s=[1,]+range(4,n+1,2)+range(6,n+1,3)+range(10,n+1,5)+range(14,n+1,7)
    for x in (2,3,5,7):
...

Python Sieve of Eratosthenes

by Lunis, December 18, 2009 00:12, 5 refactorings, tagged with Prime, Prime Numbers, sieve

I've purposely avoided look...