Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:





MnDetails
3667249
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 264
Factored
FactorDigitsBitsDate
34343953830294737825252153185740303250108142138.02020-10-10 02:42:23
P-1 factors
DateFactorsB1B2
2020-10-10343439538302947378252521531857403032501081
30000000600000000
ECM
DigitsB1Curves
255000012 / 280
Estimated T-Level: 20.2
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
FactoredWojciech Florek1945115FECC47FDE0Linux 32-bit,Prime95,v14,(aka WQ2)
Factored1999-09-22Douglas Sykora1945115FECC47FDE2859677Windows,Prime95,v17,(aka WT1)
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
PRP without proof (not generated)
2020-10-10tottenhoffE07E900B3AD087FE1265470853
Verified
Certified Good
2020-10-11kutensE07E900B3AD087FE1143816853
History
DateUserTypeResult
2022-07-17JossNF-PM1B1=3667249, B2=3682510650
2022-04-06JossNF-PM1B1=1000000, B2=147585900
2020-10-11curtiscCERT
Proof certified good
2020-10-11kutensC-PRPM3667249/343439538302947378252521531857403032501081 : E07E900B3AD087FE
Proof Certified Good

Proof Power: 7

2020-10-10tottenhoffC-PRPM3667249/343439538302947378252521531857403032501081 : E07E900B3AD087FE
2020-10-10axnF-PM1Factor: 343439538302947378252521531857403032501081 / B1=30000000, B2=600000000
2018-11-26TJAOINFno factor TF: 67-68
2017-02-12JossNF-PM1B1=241228, B2=2412280, E=6
2017-01-29JossNF-PM1B1=167520
2017-01-03Gordon SpenceNFno factor TF: 66-67
2016-12-30JossNF-PM1B1=129600
2016-12-24JossNF-PM1B1=108000
2016-10-02JossNF-PM1B1=90000, B2=3942000
2016-06-22JossNF-PM1B1=90000, B2=3285000, E=6
2016-02-23Mark RoseNFno factor TF: 1-60
2016-02-23Mark RoseNFno factor TF: 62-63
2015-10-19ramgeisNFno factor TF: 65-66
2015-01-23VictordeHollanderNFno factor TF: 64-65
2015-01-23VictordeHollanderNFno factor TF: 63-64
2012-06-05GrunwalderGIMPNFno factor TF: 1-63
2012-02-06Squeeky_SquirrelNF-PM1B1=90000, B2=1642500, E=6
2011-06-08Grant McCrackenNFno factor TF: 61-62
2009-07-11Carsten KossendeyNF-PM1B1=20000, B2=260000
2009-03-09S485122NFno factor TF: 60-61
1999-09-22-anonymous-C-LL1945115FECC47FDE