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
332197123
Composite: proven not-prime with Lucas-Lehmer test
No factors below 281
TF target 281
P-1
B1 = 3340000
B2 = 79325000
LL
StatusDateUserResidueShiftSoftware
Bad2010-07-12xorbe4D40C71FBC5E8B9868760725Windows 64-bit,Prime95,v25.9,build 4
Verified2020-02-16Fan MingCACA5F2BC136AF12293997230CUDALucas v2.06
Verified2021-05-23KrieselCACA5F2BC136AF120gpuowl,v6.11-380-g79ea0cc
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2021-05-23KrieselC-LLCACA5F2BC136AF12
2020-06-06Anton RepkoNFno factor TF: 80-81
2020-02-16Fan MingC-LLCACA5F2BC136AF12
2015-02-10Jerry HallettNFno factor TF: 79-80
2013-10-15Bill StaffenNFno factor TF: 78-79
2013-10-14Bill StaffenNFno factor TF: 77-78
2010-07-12xorbeC-LL4D40C71FBC5E8B98
2009-04-16xorbeNFno factor TF: 76-77
2009-04-04xorbeNFno factor TF: 75-76
2009-03-29xorbeNF-PM1B1=3340000, B2=79325000
2009-03-07xorbeNFno factor TF: 74-75
2009-03-03xorbeNFno factor TF: 73-74
2009-03-01xorbeNFno factor TF: 72-73
2009-02-28xorbeNFno factor TF: 71-72
2009-01-03Team_InspectorNFno factor TF: 70-71
2008-10-06Team_InspectorNFno factor TF: 69-70
2008-10-06Team_InspectorNFno factor TF: 68-69