This photo provided by the University of Central Missouri shows computer science and mathematics professor Curtis Cooper. The university said Tuesday 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, about 50 miles east of Kansas City. (AP Photo/University of Central Missouri)

Associated Press
This photo provided by the University of Central Missouri shows computer science and mathematics professor Curtis Cooper. The university said Tuesday 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, about 50 miles east of Kansas City. (AP Photo/University of Central Missouri)
This photo provided by the University of Central Missouri shows computer science and mathematics professor Curtis Cooper. The university said Tuesday 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, about 50 miles east of Kansas City. (AP Photo/University of Central Missouri)
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