On 15 September 2017, 11:01:15 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,031,699 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 203rd overall.
The discovery was made by Randall Scalise (Randall J. Scalise) of the United States using an Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz with 6GB RAM, running Linux. This computer took about 1 hour 13 minutes to complete the primality test using LLR.
The prime was verified on 15 September 2017, 22:09:16 UTC by Hans-Jürgen Bergelt (Hans-Jürgen Bergelt) of Germany using an Intel(R) Core(TM) i7-3960X CPU @ 3.30GHz with 8GB RAM, running Microsoft Windows 7. This computer took about 1 hour 49 minutes to complete the primality test using LLR. Hans-Jürgen is a member of the SETI.Germany team.
For more details, please see the official announcement.