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
82571791
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 276
TF target 275
P-1
B1 = 8300000
B2 = 83128500
LL
StatusDateUserResidueShiftSoftware
Unverified2018-01-11JohnK Wright V Plano TexasD04ADAC82076DC__29656077Windows,Prime95,v29.4,build 5
History
DateUserTypeResult
2025-11-12yuriy_5-1NF-PM1B1=8300000, B2=83128500
2025-07-14Jarod McClintockNFno factor TF: 75-76
2018-01-11JohnK Wright V Plano TexasC-LLD04ADAC82076DC__
2017-08-12tscNF-PM1B1=715000, B2=12512500
2016-12-12TheJudgerNFno factor TF: 74-75
2016-12-12TheJudgerNFno factor TF: 73-74
2016-11-25Judge HaleNFno factor TF: 72-73
2013-08-18SRS TechnologyNFno factor TF: 71-72
2013-08-18SRS TechnologyNFno factor TF: 70-71
2013-08-18SRS TechnologyNFno factor TF: 69-70
2013-08-18SRS TechnologyNFno factor TF: 68-69
2013-06-15NoWhereManNFno factor TF: 67-68
2013-01-31rjbelansNFno factor TF: 66-67
2011-03-25kagakubuNFno factor TF: 65-66
2010-12-18Architects CubedNFno factor TF: 64-65