Project Euler - problem 10

"Find the sum of all the primes below two million"

Prime number generation has been at the forefront of mathematics since ancient times, and they are one of the most critical parts of the modern Internet landscape: from cryptography to Bitcoin.

To say that prime numbers are essential is not an understatement.

To work with prime numbers we have to clear some basics:

To build a prime number generator, we have to examine two pieces: (1) the "prime number generator" and (2) the accumulator loop

In Python 3, part (1) looks like this

Part (2) can look like a loop through a range of numbers, with an accumulator that sums the prime numbers produced.