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
332237981
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
Unverified2019-10-23Icarus0F809CE93A8CDC__122083321Windows 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2023-10-18James HeinrichNFno factor TF: 67-68
2023-02-17Mark RoseNFno factor TF: 80-81
2023-02-17Mark RoseNFno factor TF: 79-80
2019-10-23IcarusC-LL0F809CE93A8CDC__
2017-10-13IcarusNF-PM1B1=2855000, B2=74230000, E=12
2013-09-28Bill StaffenNFno factor TF: 78-79
2013-09-28Bill StaffenNFno factor TF: 77-78
2013-09-27Bill StaffenNFno factor TF: 76-77
2013-09-27Bill StaffenNFno factor TF: 75-76
2013-09-27Bill StaffenNFno factor TF: 74-75
2011-02-13Team_InspectorNFno factor TF: 73-74
2009-12-01ANONYMOUSNFno factor TF: 72-73
2009-11-30ANONYMOUSNFno factor TF: 71-72
2009-05-23Jakub PrabuckiNFno factor TF: 70-71
2009-05-12Team_InspectorNFno factor TF: 69-70
2009-01-29Team_InspectorNFno factor TF: 68-69