On 21 June 2016, 15:59:00 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,059,162 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 132nd overall.
The discovery was made by Stefan Larsson (288larsson) of Sweden using an Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz with 16GB RAM, running Microsoft Windows 10. This computer took about 1 hour 20 minutes to complete the primality test using LLR. Stefan is a member of the Sicituradastra. team.
The prime was verified on 23 June 2016, 19:45:48 UTC, by Wiktor Jezioro (Wiktor) of Poland using an Intel(R) Xeon(R) CPU E5-2690 v2 @ 3.00GHz with 30GB RAM, running Linux. This computer took about 1 hour 57 minutes to complete the primality test using LLR. Wiktor is a member of the BOINC@Poland team.
For more details, please see the official announcement.