On 8 October 2021, 01:38:53 UTC, PrimeGrid’s Sierpinski/Riesel Base 5 Problem project eliminated k=102818 by finding the mega prime:
The prime is 2,404,729 digits long and enters Chris Caldwell's “The Largest Known Primes Database” ranked 96th overall. 61 k’s now remain in the Riesel Base 5 problem.
The discovery was made by Wes Hewitt (emoga) of Canada using an AMD Ryzen 9 5950X 16-Core Processor with 32GB RAM, running Microsoft Windows 10 Professional x64 Edition. This computer took about 1 hour, 29 minutes to complete the primality test using LLR2. Wes Hewitt is a member of TeAm AnandTech team.
The prime was verified on 10 October 2021, 20:14 UTC, by an Intel(R) Core(TM) i7-9800X CPU @ 3.80GHz with 32GB of RAM, running CentOS. This computer took 20 hours and 39 minutes to complete the primality test using LLR2.
For more details, please see the official announcement.