How well do you know your small prime numbers? Can you prove it under time pressure? Then visit the Is this prime? game and give it a shot. The game was designed by Christian Lawson-Perfect, and it's ...

A prime factor is a natural number, other than 1, whose only factors are 1 and itself. The first few prime numbers are actually 2, 3, 5, 7, 11, and so on. Now we can also use what’s called prime ...

Ken Ono, a top mathematician and advisor at the University of Virginia, has helped uncover a striking new way to find prime numbers—those puzzling building blocks of arithmetic that have kept ...

A prime number is a whole number greater than one that has exactly two factors. Those two factors are one and the number itself. This definition is found across many school curriculums. Examples ...

Prime numbers have captivated mathematicians for thousands of years—and now cloud computing is helping them chase the biggest ones yet. Reading time 5 minutes A shard of smooth bone etched with ...