Marin Mersenne 2^P-1
Username
Password
Forgot password?
Black
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
79827403
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 276
TF target 275
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2025-10-11Fabrice BelletDLL63.92 %2026-01-062026-01-11
P-1
B1 = 670000
B2 = 13065000
LL
StatusDateUserResidueShiftSoftware
Unverified2017-04-05-anonymous-20231A696A91CD__33228333Windows 64-bit,Prime95,v28.7,build 1
History
DateUserTypeResult
2025-09-12ElectricBillNFno factor TF: 75-76
2017-04-05-anonymous-C-LL20231A696A91CD__
2016-11-20FJCrodericckNF-PM1B1=670000, B2=13065000, E=6
2016-08-23-anonymous-NFno factor TF: 74-75
2016-08-23-anonymous-NFno factor TF: 73-74
2016-08-23-anonymous-NFno factor TF: 72-73
2014-01-04HAL-9000NFno factor TF: 71-72
2013-01-24electron1897NFno factor TF: 70-71
2011-02-13-anonymous-NFno factor TF: 69-70
2011-02-11root_slaterNFno factor TF: 68-69
2011-02-07compusionNFno factor TF: 67-68
2011-02-05stealthaxeNFno factor TF: 66-67
2010-12-05NoWhereManNFno factor TF: 65-66
2010-11-29Architects CubedNFno factor TF: 64-65
2009-05-26Architects CubedNFno factor TF: 63-64