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
332222417
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 281
TF target 281
P-1
B1 = 3255000
B2 = 67541250
LL
StatusDateUserResidueShiftSoftware
Unverified2021-02-12Peter EvansA3A8838A5564D7__19451758Windows 64-bit,Prime95,v28.10,build 1
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2023-02-18Mark RoseNFno factor TF: 80-81
2023-02-18Mark RoseNFno factor TF: 79-80
2023-02-18Mark RoseNFno factor TF: 78-79
2021-02-12Peter EvansC-LLA3A8838A5564D7__
2014-04-13MikeBerlinNFno factor TF: 77-78
2011-06-17apielaNFno factor TF: 76-77
2011-06-07apielaNF-PM1B1=3255000, B2=67541250
2010-05-31apielaNFno factor TF: 75-76
2009-12-10ANONYMOUSNFno factor TF: 74-75
2009-11-25ANONYMOUSNFno factor TF: 73-74
2009-11-20ANONYMOUSNFno factor TF: 72-73
2009-11-15Team_InspectorNFno factor TF: 71-72
2009-11-14Team_InspectorNFno factor TF: 70-71
2009-03-02Team_InspectorNFno factor TF: 69-70
2008-12-16Team_InspectorNFno factor TF: 68-69