def run():
key = 10001
i = 1
P = eratosthenes(key * i)
while len(P) < key:
i *= 2
P = eratosthenes(key * i)
print P[key - 1]
def run():
P = eratosthenes(6500) # 6500 by trial/error
t = TriangleNumberGenerator()
while True:
n = t.next()
if ndivisors(n, P) > 500:
print n
break
def run():
P = eratosthenes(6500) # 6500 by trial/error
t = TriangleNumberGenerator()
while True:
n = t.next()
if ndivisors(n, P) > 500:
print n
break
def run():
print sum(eratosthenes(2000000))
def run():
print sum(eratosthenes(2000000))
