On 23 August 2016, 01:58:59 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,042,075 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 153rd 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 8GB RAM, running Linux. This computer took about 1 hour 11 minutes to complete the primality test using LLR.
The prime was verified on 23 August 2016, 11:32:10 UTC by Franz-Xaver Harvanek (XAVER) of Austria using an Intel(R) Core(TM) i7-5960X CPU @ 3.00GHz with 32GB RAM, running Microsoft Windows 7 Ultimate. This computer took about 1 hour 17 minutes to complete the primality test using LLR.
For more details, please see the official announcement.