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
332261561
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 281
TF target 281
P-1
B1 = 3100000
B2 = 93000000
LL
StatusDateUserResidueShiftSoftware
Unverified2017-05-27aurashift1194CF0A8BCA3B__147535421Linux 64-bit,Prime95,v29.1,build 8
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2023-02-22Mark RoseNFno factor TF: 80-81
2023-02-22Mark RoseNFno factor TF: 79-80
2023-02-22Mark RoseNFno factor TF: 78-79
2021-05-18Random GPUsNFno factor TF: 77-78
2017-05-27aurashiftC-LL1194CF0A8BCA3B__
2017-04-12aurashiftNF-PM1B1=3100000, B2=93000000, E=12
2015-11-10srow7NFno factor TF: 76-77
2015-01-27Team_InspectorNFno factor TF: 75-76
2011-07-01Sebastian HornbostelNFno factor TF: 74-75
2011-06-26Christian GeschwentnerNFno factor TF: 73-74
2011-06-23Team_InspectorNFno factor TF: 72-73
2011-05-31Grant McCrackenNFno factor TF: 71-72
2011-02-03kurlyNFno factor TF: 70-71
2009-10-13Team_InspectorNFno factor TF: 69-70
2009-05-17Team_InspectorNFno factor TF: 68-69