Ralfy, a member of the team BOINC Confederation found a megaprime for base S684.
The prime 41*684^436354+1 has 1.237.090 digits and entered the TOP5000 in Chris Caldwell's The Largest Known Primes Database.
Source
Actualités en direct des projets (non traduites)
SRBase - base S684 Megaprime
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