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
27142097
Composite: 2 known prime factors
Trial Factored to 271
TF target 270
Factored
FactorDigitsBitsDate
1015060904499465974754493912786.42021-03-18 10:52:00
2604396694324258176210611832787.82021-03-18 10:52:00
P-1 factors
DateFactorsB1B2
2021-03-18101506090449946597475449391
260439669432425817621061183
1350000109350000
ECM
DigitsB1Curves
25500007 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Bad2005-05-12GiHan KwonA7134B655E627CE66363688Windows,Prime95,v23,(aka WZ1)
Factored2007-01-16Dr. Martin WinterD58E2A71178E470421174642Windows,Prime95,v24 final,(aka Wc1)
Factored2011-03-29-anonymous-D58E2A71178E470418624013Windows,Prime95,v25.11,build 2
History
DateUserTypeResult
2021-05-14firejugglerNF-PP1Start=6/5, B1=500000, B2=23000000
2021-03-18firejugglerF-PM1Factor: 26436212642162007070517822654531755460254859231089553 / B1=1350000, B2=109350000
2021-02-19mikrNFno factor TF: 70-71
2018-09-11chuenkitNFno factor TF: 69-70
2018-04-09VictordeHollanderNFno factor TF: 68-69
2016-01-17NRNFno factor TF: 67-68
2011-03-29-anonymous-C-LLD58E2A71178E4704
2007-01-16Martin WinterC-LLD58E2A71178E4704
2005-05-12-anonymous-C-LLA7134B655E627CE6
2005-01-10-anonymous-NF-PM1B1=420000
2004-10-18-anonymous-NFno factor TF: 1-67
2004-03-16-anonymous-NFno factor TF: 1-62
2002-08-31JossNFno factor TF: 1-57
2001-08-18Net_ForceNFno factor TF: 1-56