Marin Mersenne 2^P-1
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MnStatusDetails
3254683Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
2986834783589063211112168.02021-02-07 12:22:01
ECM
DigitsB1Curves
255000034 / 280
Estimated T-Level: 20.6 ⓘ
TF below 2^63 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1998-02-19Anthony Staines7B273D5A98E58B7D0
Verified (Factored)1999-05-30Marek Chmielewski7B273D5A98E58B7D261552
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-02-08mrh8512FE3C192D04CE1291198253
History
DateUserTypeResult
2022-08-17JossNF-PM1
B1=3254683, B2=333401250
2022-01-25JossNF-PM1
B1=3254683, B2=118387500
2021-02-08Jan_KarabasCERT
PRP Certification
Proof certified good
2021-02-08mrhC-PRP
M3254683/298683478358906321111 : 8512FE3C192D04CE
PRP proof power = 7
PRP: Verified
Proof certified good
2021-02-07ViliamFF
Factor: 298683478358906321111 / TF: 68-69
2019-01-07TJAOINF
no factor from 2^67 to 2^68
2018-01-01JossNF-PM1
B1=3254683, B2=11685000, E=6
2017-03-29Gordon SpenceNF
no factor from 2^66 to 2^67
2016-01-15Squeeky_SquirrelNF-PM1
B1=205000, B2=5842500, E=12
2015-06-28ThaNF
no factor from 2^65 to 2^66
2015-02-18VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-18VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-07JossNF-PM1
B1=99442
2014-06-11JossNF-PM1
B1=79721
2012-12-30dbaughNF
no factor from 2^62 to 2^63
2011-09-20markrNF
no factor to 2^62
2011-09-12USAFSSNF-PM1
B1=60000, B2=1050000, E=6
2009-07-05Carsten KossendeyNF-PM1
B1=15000, B2=191250
2009-04-03S485122NF
no factor from 2^60 to 2^61