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
332268227
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 281
TF target 281
P-1
B1 = 3105000
B2 = 92373750
LL
StatusDateUserResidueShiftSoftware
Unverified2019-11-08Icarus79E4F54890DF12__114198273Windows 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2023-02-23Mark RoseNFno factor TF: 80-81
2023-02-23Mark RoseNFno factor TF: 79-80
2023-02-23Mark RoseNFno factor TF: 78-79
2021-05-24Random GPUsNFno factor TF: 77-78
2019-11-08IcarusC-LL79E4F54890DF12__
2017-11-07IcarusNF-PM1B1=3105000, B2=92373750, E=12
2014-06-11Team_InspectorNFno factor TF: 76-77
2014-01-03Team_InspectorNFno factor TF: 75-76
2013-01-12LaurVNFno factor TF: 74-75
2012-05-11Team_InspectorNFno factor TF: 73-74
2011-06-26Christian GeschwentnerNFno factor TF: 72-73
2011-06-01Grant McCrackenNFno factor TF: 71-72
2011-04-26Grant McCrackenNFno factor TF: 70-71
2009-12-18Team_InspectorNFno factor TF: 69-70
2009-07-03SunfishNFno factor TF: 68-69