Tuesday, January 03, 2006

Missouri Researchers Find Largest Known Prime Number

An AP newswire article by Garance Burke, via USA Today, reports that:

Researchers at a Missouri university have identified the largest known prime number, officials said Tuesday.

The team at Central Missouri State University, led by associate dean Steven Boone and mathematics professor Curtis Cooper, found it in mid-December after programming 700 computers years ago.

The number that the team found is 9.1 million digits long. It is a Mersenne prime known as M30402457 — that's 2 to the 30,402,457th power minus 1.

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