 Another way of saying this is that the sequence
of prime numbers never ends.This statement is referred to as "Euclid's theorem" in honor of the ancient Greek mathematician Euclid, since the first known proof for this statement is attributed to him.Many more proofs of the infinitude of primes are known, including an analytical proof by Euler, Goldbach's proof based on Fermat numbers, Furstenberg's proof using general topology, and Kummer's elegant proof.