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
3469469
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 270
TF target 264
Factored
FactorDigitsBitsDate
1462162065929307639702792477.02025-03-01 14:49:32
ECM
DigitsB1Curves
2550000222 / 280
Estimated T-Level: 24.0
TF below 2^75 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
Factoredphil kenny6D5738ED535E5AF40Windows,Prime95,v14,(aka WQ1)
Factored1999-11-24MIT dept. of Univ. of Jyvaskyla6D5738ED535E5AF42817370Linux 32-bit,Prime95,v19,(aka WV2)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
Certified Good
2025-03-01Andrey Dobrynin4957B3E9039E96471318756853
History
DateUserTypeResult
2025-03-02sean89CERT
Proof certified good
2025-03-01Andrey DobryninC-PRP
Proof Certified Good

Proof Power: 7

2025-03-01Andrey DobryninF-ECMFactor: 146216206592930763970279 / ECM curve 15, B1=131910, B2=275660385, Edwards Sigma=8445411322419510
2024-09-04JossNF-PM1B1=10000000, B2=15851575740
2024-01-12JossNF-PM1B1=2420441, B2=5029784760
2022-05-18TJAOINFno factor TF: 69-70
2021-03-31axnNF-PM1B1=20000000, B2=1000000000
2021-01-08axnNFno factor TF: 68-69
2019-01-14TJAOINFno factor TF: 67-68
2017-02-10Gordon SpenceNFno factor TF: 66-67
2016-02-23Mark RoseNFno factor TF: 62-63
2016-02-23Mark RoseNFno factor TF: 1-60
2016-01-04ramgeisNFno factor TF: 65-66
2015-02-07VictordeHollanderNFno factor TF: 64-65
2015-02-07VictordeHollanderNFno factor TF: 63-64
2014-09-25HBendtzNF-PM1B1=500000, B2=10000000, E=12
2014-08-21JossNF-PM1B1=78500
2012-08-18GrunwalderGIMPNFno factor TF: 1-63
2011-11-10USAFSSNF-PM1B1=60000, B2=990000, E=6
2011-07-22markrNFno factor TF: 61-62
2009-07-06Carsten KossendeyNF-PM1B1=20000, B2=235000
2009-03-21S485122NFno factor TF: 60-61
1999-11-24ANONYMOUSC-LL6D5738ED535E5AF4