Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Lucas-Lehmer test results of Mersenne Numbers

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4 Later Factored LL test results

Exponent
User name
Computer name
Residue
Shift count
Error code
#LL
#PRP
Software
Date found
2377Unknown028104Unknown, (aka U)
2377George WoltmanDA482050E912028104Woltman, Prime95, first web release, (aka W4)
2377Brian J. BeesleyDA482050E912028104Mac, John Sweeney, v1.4, (aka J3)
2377MadPooManual testingDA482050E91202813674Windows 64-bit, Prime95, v26, (aka We4)2015-04-11