Here’s how it works. The first five prime numbers: 2, 3, 5, 7 and 11. A prime number is an integer, or whole number, that has only two factors — 1 and itself.

UCLA mathematicians appear to have won a $100,000 prize from the Electronic Frontier Foundation for discovering a 13-million-digit prime number that has long been sought by computer users.

“By 2012, when the market for 3-D integration of heterogeneous components such as memories, logic, power ICs and analog takes off, Soitec's circuit stacking technology will enable further device ...

9 is not a prime number. It can be divided by 3 as well as 1 and 9. The prime numbers below 20 are: 2, 3, 5, 7, 11, 13, 17, 19. Don't forget: the number 1 is not thought of as a prime number.

The Great Internet Mersenne Prime Search, an organization devoted to doing exactly what its name suggests, announced that it had discovered a new prime number, the largest ever found: 277,232,917 ...

If you printed each digit 1 mm wide, the number would stretch for more than a half marathon's 13.2 miles. Or as standupmaths reports, we're talking about 2,567 killer whales stretched out end-to-end.

My personal favorite prime number is Belphegor's Prime: 1000000000000066600000000000001. That's a 1, followed by 13 0's, followed by a 666, followed by 13 more 0's, followed by a closing 1.