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11-05-12, 09:20 PM
On 23 October 2012, PrimeGrid’s Proth Prime Search project found the Mega Prime: 9*2^3497442 +1 (http://primes.utm.edu/primes/page.php?id=109930) The prime is 1,052,836 digits long and enters Chris Caldwell's The Largest Known Primes Database (http://primes.utm.edu/primes) ranked 51st overall. This prime is also a Generalized Fermat prime and ranks as the 12th largest found. The discovery was made by Heinz Ming (parabol (http://www.primegrid.com/show_user.php?userid=57406)) of Switzerland using an Intel Core(TM) i7 CPU 860 @ 2.80GHz with 8GB RAM, running Windows 7 Professional. This computer took just over 5 hours 59 minutes to complete the primality test using LLR. Heinz Ming is a member of the Aggie The Pew (http://www.primegrid.com/team_display.php?teamid=2280) team. The prime was verified by Tim McArdle (Bauerwulf (http://www.primegrid.com/show_user.php?userid=136025)) of the United States using an AMD Athlon(tm) II P340 Dual-Core Processor with 6 GB RAM, running Windows 7 Professional. Jason is a member of the Don't Panic Labs (http://www.primegrid.com/team_display.php?teamid=3919) team. For more details, please see the official announcement (http://www.primegrid.com/download/PPS-3497442.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=4624)
More... (http://www.primegrid.com/forum_thread.php?id=4624)