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
332205221
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 281
TF target 281
P-1
B1 = 3125000
B2 = 85156250
LL
StatusDateUserResidueShiftSoftware
Unverified2018-12-12SteveMosey944E036492AEB7__111431213Windows 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2023-02-10Mark RoseNFno factor TF: 80-81
2023-02-10Mark RoseNFno factor TF: 79-80
2023-02-10Mark RoseNFno factor TF: 78-79
2018-12-12SteveMoseyC-LL944E036492AEB7__
2015-06-24aurashiftNF-PM1B1=3125000, B2=85156250, E=6
2015-06-06srow7NFno factor TF: 77-78
2014-11-24Team_InspectorNFno factor TF: 76-77
2011-10-16Sebastian HornbostelNFno factor TF: 75-76
2011-06-17SunfishNFno factor TF: 74-75
2010-04-23Team_InspectorNFno factor TF: 73-74
2010-04-06Team_InspectorNFno factor TF: 72-73
2010-01-18Team_InspectorNFno factor TF: 71-72
2010-01-17Team_InspectorNFno factor TF: 70-71
2009-06-30Team_InspectorNFno factor TF: 69-70
2009-01-08Team_InspectorNFno factor TF: 68-69