On 24 October 2016, 17:17:12 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,000,626 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 197th 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 8 minutes to complete the primality test using LLR.
The prime was verified on 26 October 2016 10:21:20 UTC, by Christoph Wolf ([CSF] Christoph Wolf) of Germany using an Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz with 8GB RAM running Windows 10 Professional. This computer took about 1 hour 11 minutes to complete the primality test using LLR. Christoph is a member of the CRUNCHERS SANS FRONTIERES team.
For more details, please see the official announcement.