On 14 March 2017 14:01:17 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,016,927 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 205th overall.
The discovery was made by Randall Scalise (Randall J. Scalise) of the United States using an Intel(R) Core(TM) i5-4590 @ 3.30GHz with 8GB RAM, running Linux. This computer took about 1 hour 2 minutes to complete the primality test using LLR.
The prime was verified on 14 March 2017 14:09:41 UTC by Lars Fricke (Lars Fricke) of Germany using an Intel(R) Xeon(R) E5-2660v3 @ 2.60GHz with 128GB RAM, running Linux. This computer took about 1 hour 10 minutes to complete the primality test using LLR. Lars is a member of the Rechenkraft.net team.
For more details, please see the official announcement.