Free-DC
05-12-2010, 12:26 PM
On 3 Apr 2009 15:40:01 UTC, PrimeGrid's 321 Prime Search found another Mega Prime:
3*25082306+1
The prime is 1,529,928 digits long and enters Chris Caldwell's The Largest Known Primes Database (http://primes.utm.edu/primes/) ranked 15th overall. It is the 6th largest Proth prime found and the largest found Mega Prime using LLR. The discovery was made by Andy Brady (Andy Brady (http://www.primegrid.com/show_user.php?userid=1599)) of the United States using an Intel C2Q Q8200 @ 2.33GHz with 3GB RAM running Windows Vista. This computer took about 14 hours 7 minutes to complete the primality test. Andy is a member of the BOINCstats (http://www.primegrid.com/team_display.php?teamid=1) team.
For more details, please see the official announcement (http://www.primegrid.com/download/321-5082306.pdf). Decimal representation of the number is also available (http://www.primegrid.com/download/321n5082306.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=2436)
3*25082306+1
The prime is 1,529,928 digits long and enters Chris Caldwell's The Largest Known Primes Database (http://primes.utm.edu/primes/) ranked 15th overall. It is the 6th largest Proth prime found and the largest found Mega Prime using LLR. The discovery was made by Andy Brady (Andy Brady (http://www.primegrid.com/show_user.php?userid=1599)) of the United States using an Intel C2Q Q8200 @ 2.33GHz with 3GB RAM running Windows Vista. This computer took about 14 hours 7 minutes to complete the primality test. Andy is a member of the BOINCstats (http://www.primegrid.com/team_display.php?teamid=1) team.
For more details, please see the official announcement (http://www.primegrid.com/download/321-5082306.pdf). Decimal representation of the number is also available (http://www.primegrid.com/download/321n5082306.pdf).
More... (http://www.primegrid.com/forum_thread.php?id=2436)