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
332229187
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 281
TF target 281
P-1
B1 = 2855000
B2 = 74230000
LL
StatusDateUserResidueShiftSoftware
Unverified2017-02-24aurashiftFECDA9C9E5E833__196835289Linux 64-bit,Prime95,v29.1,build 8
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2023-02-15Mark RoseNFno factor TF: 80-81
2023-02-15Mark RoseNFno factor TF: 79-80
2017-02-24aurashiftC-LLFECDA9C9E5E833__
2016-10-11aurashiftNF-PM1B1=2855000, B2=74230000, E=12
2013-05-02Bill StaffenNFno factor TF: 78-79
2013-05-02Bill StaffenNFno factor TF: 77-78
2013-05-02Bill StaffenNFno factor TF: 76-77
2013-04-29Team_InspectorNFno factor TF: 75-76
2011-04-14Christian GeschwentnerNFno factor TF: 74-75
2010-12-30Team_InspectorNFno factor TF: 73-74
2010-09-23Team_InspectorNFno factor TF: 72-73
2010-09-20Team_InspectorNFno factor TF: 71-72
2010-04-19Grant McCrackenNFno factor TF: 70-71
2009-03-15Team_InspectorNFno factor TF: 69-70
2009-01-04Team_InspectorNFno factor TF: 68-69