On 12 November 2016, 17:02:17 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,002,564 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 193rd overall.
The discovery was made by Randall Scalise (Randall J. Scalise) of the United States using an Intel(R) Core(TM) i5-4590 CPU @ 3.50GHz with 8GB RAM, running Linux. This computer took about 1 hour 12 minutes to complete the primality test using LLR.
The prime was verified on 12 November 2016, 17:23:33 UTC by John S. Chambers (Johnny Rotten) of the United States using an Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz with 16GB RAM, running Microsoft Windows 7 Professional Edition. This computer took about 1 hour 23 minutes to complete the primality test using LLR. John is a member of the SETI.USA team.
For more details, please see the official announcement.