> The number ? 2 raised to the 57,885,161 power minus 1 ? was > discovered by University of Central Missouri mathematician Curtis > Cooper as part of a giant network of volunteer computers devoted to > finding primes, similar to projects like SETI@Home, which downloads > and analyzes radio telescope data in the Search for Extraterrestrial > Intelligence (SETI). The network, called the Great Internet Mersenne > Prime Search (GIMPS) harnesses about 360,000 processors operating at > 150 trillion calculations per second. This is the third prime number > discovered by Cooper.