On 11 December 2016, 02:52:40 UTC, PrimeGrid’s Generalized Fermat Prime Search found the Generalized Fermat mega prime:
The prime is 1,002,408 digits long and enters Chris Caldwell's The Largest Known Primes Database ranked 19th for Generalized Fermat primes and 198th overall.
The discovery was made by Håkan Lind (sangis43) of Sweden using an NVIDIA GeForce GTX 960 in an Intel(R) Core(TM) i7-6800k CPU with 16GB RAM, running Microsoft Windows 10 Professional. This GPU took about 22 minutes to probable prime (PRP) test with GeneferOCL4. Håkan is a member of the Sicituradastra. team.
The PRP was confirmed prime by an Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz with 16GB RAM, running Windows 7 Ultimate. This computer took about 8 hours 58 minutes to complete the primality test using LLR.
For more details, please see the official announcement.