https://theconversation.com/prime-numbers-the-building-blocks-of-mathematics-have-fascinated-for-centuries-now-technology-is-revolutionizing-the-search-for-them-249223
Prime numbers, the building blocks of mathematics, have fascinated for centuries − now technology is revolutionizing the search for them
Today, people use complex computing networks to search for prime numbers with millions of digits. But early mathematicians were running these calculations by hand.