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
3435109
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 264
Factored
FactorDigitsBitsDate
7573681877007978568349431692789.32025-01-10 16:11:01
ECM
DigitsB1Curves
2550000275 / 280
Estimated T-Level: 24.9
TF below 2^78 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredTom Delaney40D48814FC0C09730Windows,Prime95,v14,(aka WQ1)
Factored1999-06-26John Carlson40D48814FC0C09733379343Windows,Prime95,v18,(aka WU1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-01-10Andrey DobryninF8F749BDA52C947B1223727853
History
DateUserTypeResult
2025-01-11XyzzyCERT
Proof certified good
2025-01-10Andrey DobryninC-PRP
Proof Certified Good

Proof Power: 7

2025-01-10Andrey DobryninF-ECMFactor: 757368187700797856834943169 / ECM curve 23, B1=125446, B2=616193655, Edwards Sigma=6516916282768614
2024-12-08JossNF-PM1B1=15648910, B2=17126559450
2024-01-13JossNF-PM1B1=2430097, B2=6995008020
2023-11-17JossNF-PM1B1=2430097, B2=3368224860
2023-11-17JossNF-PM1B1=2430097, B2=1605403800
2023-08-26JossNF-PM1B1=1000000, B2=1605403800
2022-08-01TJAOINFno factor TF: 69-70
2021-05-06axnNF-PM1B1=14000000, B2=700000000
2021-01-01axnNFno factor TF: 68-69
2018-09-17TJAOINFno factor TF: 67-68
2017-02-05Gordon SpenceNFno factor TF: 66-67
2016-02-23Mark RoseNFno factor TF: 62-63
2016-02-23Mark RoseNFno factor TF: 1-60
2015-04-13Gordon SpenceNFno factor TF: 65-66
2015-02-07VictordeHollanderNFno factor TF: 64-65
2015-02-07VictordeHollanderNFno factor TF: 63-64
2014-09-16HBendtzNF-PM1B1=500000, B2=10000000, E=12
2014-07-18JossNF-PM1B1=78685
2012-08-18GrunwalderGIMPNFno factor TF: 1-63
2011-11-02USAFSSNF-PM1B1=60000, B2=945000, E=6
2011-08-06markrNFno factor TF: 61-62
2009-07-06Carsten KossendeyNF-PM1B1=15000, B2=210000
2009-03-23S485122NFno factor TF: 60-61
1999-06-26-anonymous-C-LL40D48814FC0C0973