Problem 9

Summation of primes

Problem 11

Summation of primes

Problem 10

The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.
Find the sum of all the primes below two million.
from tools import rwh_primes2


def run(limit=2000001):
    return sum(rwh_primes2(limit))