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10-16-13, 09:40 PM
On 30 August 2013, PrimeGrid’s PRPNet found the 2nd largest known Factorial prime: 147855!-1 (http://primes.utm.edu/primes/page.php?id=115328) The prime is 700,177 digits long and enters Chris Caldwell's The Largest Known Primes Database (http://primes.utm.edu/primes) ranked 2nd for Factorial primes (http://primes.utm.edu/top20/page.php?id=30) and 191st overall. The discovery was made by Pietari Snow (Lumiukko (http://www.primegrid.com/show_user.php?userid=25183)) of Finland using an Intel(R) Core(TM) i7 CPU 940 @ 2.93GHz with 6 GB RAM running Linux. This computer took just a little over 69 hours and 37 minutes to complete the primality test using pfgw. Pietari is a member of the PrimeSearchTeam (http://www.primegrid.com/team_display.php?teamid=696). For more details, please see the official announcement (http://www.primegrid.com/download/FPS-147855.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=5311)
More... (http://www.primegrid.com/forum_thread.php?id=5311)