Marin Mersenne 2^P-1
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MnStatusDetails
3468329Factored
FactorDigitsBitsDate
424694346584436598663932375.22021-05-30 06:53:14
ECM
DigitsB1Curves
255000022 / 280
Estimated T-Level: 20.4
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-06-20kimon berlinC0149BFD357FEE530
Verified (Factored)1999-09-30Sam RobertsonC0149BFD357FEE53493708
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-06-06Chang Chia-TcheE5C5465B833BFC0419350553
History
DateUserTypeResult
2022-04-10JossNF-PM1
B1=1000000, B2=126668850
2021-06-06John AireyCERT
PRP Certification
Proof certified good
2021-06-06Chang Chia-TcheC-PRP
M3468329/42469434658443659866393 : E5C5465B833BFC04
PRP proof power = 7
PRP: Verified
Proof certified good
2021-05-30kutensF-ECM
Factor: 42469434658443659866393 / (ECM curve 1, B1=50000, B2=4700000, Sigma=7358200664693827)
2021-03-30axnNF-PM1
B1=20000000, B2=1000000000
2021-01-08axnNF
no factor from 2^68 to 2^69
2019-01-28TJAOINF
no factor from 2^67 to 2^68
2017-02-10Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-01-04ramgeisNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-24HBendtzNF-PM1
B1=500000, B2=10000000, E=12
2014-07-28JossNF-PM1
B1=78506
2012-08-18GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-11-10USAFSSNF-PM1
B1=60000, B2=990000, E=6
2011-07-23markrNF
no factor from 2^61 to 2^62
2009-07-06Carsten KossendeyNF-PM1
B1=20000, B2=235000
2009-03-20S485122NF
no factor from 2^60 to 2^61