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
332221691
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 281
TF target 281
P-1
B1 = 3350000
B2 = 104687500
LL
StatusDateUserResidueShiftSoftware
Unverified2018-12-06Schnell Lab11755BA766CC5F__319136004Windows 64-bit,Prime95,v29.4,build 7
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2023-02-12Mark RoseNFno factor TF: 80-81
2023-02-12Mark RoseNFno factor TF: 79-80
2018-12-06Schnell LabC-LL11755BA766CC5F__
2013-07-14Bill StaffenNFno factor TF: 78-79
2013-07-13Bill StaffenNFno factor TF: 77-78
2011-08-18trimixNFno factor TF: 76-77
2011-08-07trimixNF-PM1B1=3350000, B2=104687500
2011-04-14Sebastian HornbostelNFno factor TF: 75-76
2011-04-01Christian GeschwentnerNFno factor TF: 74-75
2010-07-13Team_InspectorNFno factor TF: 73-74
2010-05-02Team_InspectorNFno factor TF: 72-73
2010-02-06Team_InspectorNFno factor TF: 71-72
2010-02-05Team_InspectorNFno factor TF: 70-71
2009-08-01Team_InspectorNFno factor TF: 69-70
2008-12-13Team_InspectorNFno factor TF: 68-69