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

PrimeNet Exponent Status

Exponent Range:





MnDetails
84928433
Composite: proven not-prime with Lucas-Lehmer test
No factors below 276
TF target 275
P-1
B1 = 8478390
B2 = 245873320
LL
StatusDateUserResidueShiftSoftware
Verified2019-05-27patgie2CD1245CD2C59F3754754840Windows 64-bit,Prime95,v29.8,build 3
Verified2026-01-15Greg2CD1245CD2C59F370Linux64,prpll,v46386d0
History
DateUserTypeResult
2026-01-15GregC-LL2CD1245CD2C59F37
2019-05-27patgieC-LL2CD1245CD2C59F37
2019-04-27ATHNFno factor TF: 63-64
2019-04-27ATHNFno factor TF: 1-63
2017-12-15CuboxNF-PM1B1=8478390, B2=245873320, E=6
2017-07-19Mark RoseNFno factor TF: 75-76
2017-07-18Son JohanNFno factor TF: 74-75
2017-05-07-anonymous-NFno factor TF: 73-74
2016-12-23Judge HaleNFno factor TF: 72-73
2014-02-21g0bNFno factor TF: 71-72
2013-02-22gcardonaNFno factor TF: 70-71
2013-02-22gcardonaNFno factor TF: 69-70
2013-02-22gcardonaNFno factor TF: 68-69
2013-02-22gcardonaNFno factor TF: 67-68
2013-02-22gcardonaNFno factor TF: 66-67
2012-08-09Carsten KossendeyNFno factor TF: 65-66
2010-12-22Architects CubedNFno factor TF: 64-65