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

PrimeNet Exponent Status

Exponent Range:





MnDetails
7067911
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 269
TF target 267
Factored
FactorDigitsBitsDate
3631569533105591676792168.32020-04-17 08:26:40
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factored1999-10-07Alun BellD931FEC2DF36F8BE3233487Windows,Prime95,v18,(aka WU1)
Factored2001-12-08AlexanderD931FEC2DF36F8BE4265860Windows,Prime95,v21,NT service,(aka WX5)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Verified
PRP without proof (not generated)
2020-04-18treborC95CDEFE5E4B3FA61483025653
Verified
PRP without proof (not generated)
2020-04-19Wentao HuangC95CDEFE5E4B3FA61439073553
History
DateUserTypeResult
2020-04-19Wentao HuangC-PRPM7067911/363156953310559167679 : C95CDEFE5E4B3FA6
2020-04-18treborC-PRPM7067911/363156953310559167679 : C95CDEFE5E4B3FA6
2020-04-17TJAOIFFactor: 363156953310559167679 / TF: 68-69
2018-07-22ramgeisNFno factor TF: 67-68
2018-06-05Squeeky_SquirrelNF-PM1B1=415000, B2=12553750, E=12
2016-08-19kkmrkkblmbrbkNFno factor TF: 66-67
2015-06-16VictordeHollanderNFno factor TF: 65-66
2014-02-10lycornNFno factor TF: 64-65
2014-02-06NesowaNFno factor TF: 63-64
2012-01-10bcp19NF-PM1B1=85000, B2=1530000, E=6
2002-01-28-anonymous-C-LLD931FEC2DF36F8BE
2002-01-28-anonymous-NFno factor TF: 1-63
2002-01-28-anonymous-NF-PM1B1=35000, B2=463750
2001-12-22-anonymous-NF-PM1B1=35000, B2=463750
2001-12-22-anonymous-NFno factor TF: 1-63
2001-12-22-anonymous-C-LLD931FEC2DF36F8BE
2001-12-08-anonymous-C-LLD931FEC2DF36F8BE
2001-10-25-anonymous-NFno factor TF: 1-63
2001-10-25-anonymous-NF-PM1B1=35000, B2=463750
1999-10-07-anonymous-C-LLD931FEC2DF36F8BE
1998-06-07Tom 7NFno factor TF: 1-62