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
332197721
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 281
TF target 281
P-1
B1 = 3150000
B2 = 88200000
LL
StatusDateUserResidueShiftSoftware
Unverified2015-09-18aurashift16BF645C3AD3C0__31940371Linux 64-bit,Prime95,v28.5,build 2
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2023-02-08Mark RoseNFno factor TF: 80-81
2017-02-16Random GPUsNFno factor TF: 79-80
2016-06-01-anonymous-NFno factor TF: 78-79
2015-09-18aurashiftC-LL16BF645C3AD3C0__
2015-06-23aurashiftNF-PM1B1=3150000, B2=88200000, E=12
2015-03-04Team_InspectorNFno factor TF: 77-78
2014-05-11Team_InspectorNFno factor TF: 76-77
2010-07-22ANONYMOUSNFno factor TF: 75-76
2009-09-11SunfishNFno factor TF: 74-75
2009-09-04SunfishNFno factor TF: 73-74
2009-09-01SunfishNFno factor TF: 72-73
2009-04-13Ivan TroitskyNFno factor TF: 71-72
2008-10-13Team_InspectorNFno factor TF: 70-71
2008-10-12Team_InspectorNFno factor TF: 69-70
2008-10-12Team_InspectorNFno factor TF: 68-69