Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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Exponent Range:





MnDetails
85855001
Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime
No factors below 276
TF target 275
P-1
B1 = 715000
B2 = 13942500
LL
StatusDateUserResidueShiftSoftware
Unverified2019-07-20Larry J. Paden4A30C0B7B5B41B__59383462Windows 64-bit,Prime95,v27.9,build 1
History
DateUserTypeResult
2024-06-11James HeinrichNFno factor TF: 68-69
2019-07-20Larry J. PadenC-LL4A30C0B7B5B41B__
2017-03-30Architects CubedNF-PM1B1=715000, B2=13942500, E=6
2017-03-08dh1NFno factor TF: 75-76
2014-04-05HHfromGNFno factor TF: 74-75
2014-04-05HHfromGNFno factor TF: 73-74
2014-04-05HHfromGNFno factor TF: 72-73
2014-04-05HHfromGNFno factor TF: 71-72
2014-04-05HHfromGNFno factor TF: 70-71
2014-04-05HHfromGNFno factor TF: 69-70
2014-01-14Carsten KossendeyNFno factor TF: 68-69
2014-01-14Carsten KossendeyNFno factor TF: 67-68
2014-01-14Carsten KossendeyNFno factor TF: 66-67
2013-02-25AxelssonNFno factor TF: 65-66
2010-11-28Architects CubedNFno factor TF: 64-65