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GIMPS Project Discovers Largest Known Prime Number: 277,232,917-1 RALEIGH, NC., January 3, 2018 -- The Great Internet Mersenne Prime Search (GIMPS) has discovered the largest known prime number, 277,232,917-1, having 23,249,425 digits. A computer volunteered by Jonathan Pace made the find on December 26, 2017. Jonathan is one of thousands of volunteers using free GIMPS software available at www.me

GIMPS Project Discovers Largest Known Prime Number: 274,207,281-1 RALEIGH, North Carolina, January 19, 2016 — On January 7th at 22:30 UTC, the Great Internet Mersenne Prime Search (GIMPS) celebrated its 20th anniversary with the math discovery of the new largest known prime number, 274,207,281-1, having 22,338,618 digits, on a university computer volunteered by Curtis Cooper for the project. The s

GIMPS Discovers 48th Mersenne Prime, 257,885,161-1 is now the Largest Known Prime. ORLANDO, Florida, February 5, 2013 — On January 25th at 23:30:26 UTC, the largest known prime number, 257,885,161-1, was discovered on Great Internet Mersenne Prime Search (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 (warni

GIMPS Discovers 42nd Mersenne Prime, 225,964,951-1 is now the Largest Known Prime. ORLANDO, Florida, February 27, 2005 — Dr. Martin Nowak, an eye surgeon in Michelfeld, Germany, and a long-time volunteer in the Great Internet Mersenne Prime Search (GIMPS) distributed computing project, has discovered the largest known prime number. Dr. Nowak used one of his business PCs and free software by George