Central Missouri professor Curtis Cooper discovers world's largest prime number, again
41 Action News Staff
12:39 PM, Feb 6, 2013
12:45 PM, Feb 7, 2013
WARRENSBURG, Mo. - A University of Central Missouri professor has made quite a find.
Curtis Cooper is a volunteer with Great Internet Marsenne Prime Search (GIMPS). For the third time in his career, Cooper and UCM have discovered the largest known prime number.
The number is 2 to the 57,885,161st power, minus one. It has 17,425,170 digits.
The new number, a bit too long to include in this story, is a member of a special class of extremely rare prime numbers known as Mersenne primes, , which all take the form 2 to the xth power, minus 1. There are now only 48 known Mersenne primes.
If you were to read the newest number, at a modest average of 3 digits per second, it would take you just over 67 days.