## Largest Prime Number Found

Posted by hs on December 27, 2005

The Great Internet Mersenne Prime Search (GIMPS) project has found the largest prime number for the second time this year. On Dec. 15, the team discovered a Mersenne Prime that is a **9,152,052-digit** number. Here’s the press release (may not be online).

Mersenne Primes are a subclass of Prime numbers, and are defined as a prime numbers which are 1 less than a power of 2. 7 is a Mersenne Prime since it is 2^3 -1.

The prime discovered is the 43rd Mersenne Prime discovered so far, but fails short of claiming the $100,000 award from Electronic Frontier Foundation (EFF) to be awarded for discovering a 10-million digit prime number (part of EFF Cooperative Computing Awards).

*Keywords: Prime Number, Mersenne Prime, Mersenne, Largest Prime, EFF, GIMPS, Prize, 10 million digit prime, Cooperative Computing Award *

## antonia said

i need to find the largest prime number but i cant