On 10 May 2015, 02:13:21 UTC, PrimeGrid’s Mega Prime Search found the Mega Prime:
The prime is 1,049,507 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 109th overall.
The discovery was made by Naoki Yoshioka (oevrtaker@biomaterial) of Japan using an Intel(R) Xeon(R) CPU E5-2687W 0 @ 3.10GHz with 64GB RAM running Microsoft Windows 8.1 Enterprise. This computer took about 1 hour and 32 minutes to complete the primality test using LLR. Naoki is a member of the Doshisha University team.
The prime was verified on 10 May 2015, 10:12:42 UTC, by Scott Brown (Scott Brown) of the United States using an Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz with 8GB RAM, running Microsoft Windows 7 Enterprise. This computer took about 1 hour and 14 minutes to complete the primality test using LLR. Scott is a member of the Duke University team.
For more details, please see the official announcement.