On 10 June 2014 20:37:03 UTC, PrimeGrid’s Mega Prime Search, through PRPNet, found the Mega Prime:
The prime is 1,074,913 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 66th overall.
The discovery was made by Robert Lacroix (composite) of Canada using an Intel(R) Xeon E5-2697 @ 2.7 GHz with 64GB RAM running Linux. This computer took about 1 hour 40 minutes to complete the primality test using LLR.
For more details, please see the official announcement.