Posted by: Dave Richeson | September 17, 2008

Prime number worth $100K

The Electronic Frontiers Foundation was offering a $100,000 bounty on the first Marsenne prime with over 10 million digits.  A Marsenne prime is a prime number of the form 2^n-1.

The first 10 million digit prime was discovered on August 23, 2008 by a computer at UCLA. The prime2^{43,112,609}-1, has 12,978,189 digits. It was discovered as part of the Great Internet Mersenne Prime Search (GIMPS). This newly-discovered prime is the 45th known Marsenne prime.

Remarkably, the 46th known Marsenne prime, which also contains more than 10 million digits, was discovered two weeks later by a computer in Germany.

There is still prize money available for the discovery of the first Marsenne primes with more than 100,000,000 and 1,000,000,000 digits!




Get every new post delivered to your Inbox.

Join 278 other followers

%d bloggers like this: