On 28 September 2016, 12:23:48 UTC, PrimeGrid’s PPS Mega Prime Search project found the Mega Prime:
The prime is 1,063,740 digits long and will enter Chris Caldwell's The Largest Known Primes Database ranked 138th overall.
The discovery was made by Stefan Geiger (Steve) of Austria using an Intel(R) Core(TM) i7-6700K CPU @ 4GHz with 16GB RAM, running Windows 10. This computer took about 42 minutes to complete the primality test using LLR. Stefan is a member of the Aggie The Pew team.
The prime was verified on 29 September 2016 06:53:13 UTC, by Eric Eskam (Doc No) of the United States using an Intel(R) Core(TM) i7-3770K CPU @ 3.50GHz with 8GB RAM running Windows 10. This computer took about 1 hour 21 minutes to complete the primality test using LLR. Eric is a member of the Heinlein Fans team.
For more details, please see the official announcement.