PrimeGrid Another PPS-Mega Prime!

[Newshound]

On 18 August 2017 19:28:05 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
1005*2^3420846+1

The prime is 1,029,781 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 199th overall.

The discovery was made by Łukasz Piotrowski (stiven) of Poland using an Intel(R) Xeon(R) E3-1220 v3 CPU @ 3.10GHz with 4GB RAM, running Linux. This computer took about 1 hour 1 minute to complete the primality test using LLR. Łukasz is a member of the BOINC@Poland team.

The prime was verified on 21 August 2017 06:11:37 UTC by Milan Fňašek (RNDr.) of the Czech Republic using an Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz with 4GB RAM, running Microsoft Windows 7 Professional Edition. This computer took about 2 hours 9 minutes to complete the primality test using LLR. Milan is a member of the Czech National Team.

For more details, please see the official announcement.


http://www.primegrid.com/forum_thread.php?id=7574