Q010 SummationOfPrimes

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

OutPut:

Summation of all the primes below 2000000 is: 142913828922
calledTimes: 179492731
runningTime: 1132ms

(Improved) Summation of all the primes below 2000000 is: 142913828922
calledTimes: 12663828
runningTime: 117ms