| 123456789101112131415161718 |
- from math import sqrt
- def prime(n):
- for i in range(2, int(sqrt(n) + 1)):
- if n % i == 0:
- return False
- return True
- primes = [2]
- i = 2
- while primes[-1] < 2000000:
- i += 1
- if prime(i):
- primes.append(i)
- primes.pop()
- print sum(primes)
|
