On 12 May 2017, 19:12:52 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,022,195 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 203rd overall.
The discovery was made by Randall Scalise (Randall J. Scalise) of the United States using an Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz with 4GB RAM, running Microsoft Windows 7 Enterprise Edition. This computer took about 1 hour 36 minutes to complete the primality test using LLR.
The prime was verified on 14 May 2017 09:32:20 UTC, by Sven Lünser (TheWickedSvene) of Germany using an AMD Phenom(TM) II X6K 1100T CPU with 16GB RAM, running Linux. This computer took about 2 hours 43 minutes to complete the primality test using LLR. Sven is a member of the Rechenkraft.net team.
For more dtails, please see the official announcement.