New Largest Known Prime Number: 2^57,885,161-1

An anonymous reader writes with news from Mersenne.org, home of the Great Internet Mersenne Prime Search: "On January 25th at 23:30:26 UTC, the largest known prime number, 257,885,161-1, was discovered on GIMPS volunteer Curtis Cooper's computer. The new prime number, 2 multiplied by itself 57,885,161 times, less one, has 17,425,170 digits. With 360,000 CPUs peaking at 150 trillion calculations per second, GIMPS ? now in its 17th year ? is the longest continuously-running global 'grassroots supercomputing' project in Internet history."

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/E4CxFC9XDRA/story01.htm

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