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
79711549
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 276
TF target 275
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2025-12-11riccardo ubertiDLL64.67 %2026-01-152026-01-18
P-1
B1 = 1500000
B2 = 675197670
LL
StatusDateUserResidueShiftSoftware
Unverified2017-08-19Ilya AlexandrovDB39D4C94D4584__46401878Windows 64-bit,Prime95,v28.5,build 2
History
DateUserTypeResult
2025-12-15riccardo ubertiNF-PM1B1=1500000, B2=675197670
2025-09-03ElectricBillNFno factor TF: 75-76
2017-08-19Ilya AlexandrovC-LLDB39D4C94D4584__
2016-11-08bamNF-PM1B1=675000, B2=13500000
2016-08-20AirSquirrelsNFno factor TF: 74-75
2016-08-20AirSquirrelsNFno factor TF: 73-74
2016-08-20AirSquirrelsNFno factor TF: 72-73
2016-03-01GregNFno factor TF: 71-72
2013-02-01josiboNFno factor TF: 70-71
2011-03-25Dr. NowakNFno factor TF: 69-70
2011-03-18Dr. NowakNFno factor TF: 68-69
2011-03-11Dr. NowakNFno factor TF: 67-68
2011-03-04Dr. NowakNFno factor TF: 66-67
2010-12-12Craig MeyersNFno factor TF: 65-66
2010-11-30Architects CubedNFno factor TF: 64-65
2009-05-27Architects CubedNFno factor TF: 63-64