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
82514603
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 276
TF target 275
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2026-02-23GregD2026-02-232026-05-04
P-1
B1 = 705000
B2 = 14452500
LL
StatusDateUserResidueShiftSoftware
Unverified2017-11-09MadPoo 🙂908D1C8F83633C__62856126Windows 64-bit,Prime95,v29.3,(aka Wf4)
History
DateUserTypeResult
2025-10-17Sid & AndyNFno factor TF: 75-76
2017-11-09MadPoo 🙂C-LL908D1C8F83633C__
2017-08-17Oliver KruseNF-PM1B1=705000, B2=14452500, E=12
2016-12-12AirSquirrelsNFno factor TF: 74-75
2016-12-11AirSquirrelsNFno factor TF: 73-74
2016-11-13Judge HaleNFno factor TF: 72-73
2016-11-13Judge HaleNFno factor TF: 71-72
2014-08-16SMoffatNFno factor TF: 70-71
2014-05-02timc995NFno factor TF: 69-70
2014-02-28trifNFno factor TF: 68-69
2014-02-02Preben SNFno factor TF: 67-68
2013-02-01OS1NFno factor TF: 66-67
2012-08-26Carsten KossendeyNFno factor TF: 65-66
2010-12-01Architects CubedNFno factor TF: 64-65