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
81565117
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 276
TF target 275
P-1
B1 = 650000
B2 = 12675000
LL
StatusDateUserResidueShiftSoftware
Unverified2018-10-16arnaud122FDD0E441571__6578172Windows 64-bit,Prime95,v28.10,build 1
History
DateUserTypeResult
2018-10-16arnaudC-LL122FDD0E441571__
2016-05-29TheJudgerNF-PM1B1=650000, B2=12675000, E=12
2014-09-08Numb SkullNFno factor TF: 75-76
2014-09-08Numb SkullNFno factor TF: 74-75
2014-09-08Numb SkullNFno factor TF: 73-74
2014-09-08Numb SkullNFno factor TF: 72-73
2014-09-08Numb SkullNFno factor TF: 71-72
2014-09-08Numb SkullNFno factor TF: 70-71
2011-03-18Ake TilanderNFno factor TF: 69-70
2011-03-13Helmut ZulusNFno factor TF: 68-69
2011-03-05Eugene SitnikovNFno factor TF: 67-68
2011-03-01JuergenFitschenNFno factor TF: 66-67
2011-02-27pieppiepNFno factor TF: 65-66
2010-12-07Architects CubedNFno factor TF: 64-65