February 7, 2013
This photo provided by the University of Central Missouri shows computer science and mathematics professor Curtis Cooper. The university said on Feb. 5, 2013, that a group, led by Cooper, found the 48th known Mersenne prime last month. It's the third such number discovered at the University of Central Missouri, an 11,800-student campus in Warrensburg.
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Mathematicians at the University of Central Missouri have identified the largest prime number yet, but good luck remembering it.
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