Marin Mersenne 2^P-1
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MnStatusDetails
3535283Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
133792415164966466859532373.52022-04-01 02:00:02
ECM
DigitsB1Curves
255000052 / 280
Estimated T-Level: 20.9 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Roland Roberts078513E27965AC3D0
Verified (Factored)1999-07-26Josh Goins078513E27965AC3D3215277
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-04-07RichD033438630721D40201276148253
P-1 factors
DateFactorB1B2
2022-04-01133792415164966466859534000000324000000
History
DateUserTypeResult
2022-05-11JossNF-PM1
B1=500000, B2=130364850
2022-04-07Jon PaceCERT
PRP Certification
Proof certified good
2022-04-07RichD0C-PRP
M3535283/13379241516496646685953 : 33438630721D4020
PRP proof power = 7
PRP: Verified
Proof certified good
2022-04-01mikrF-PM1
Factor: 13379241516496646685953 / (P-1, B1=4000000, B2=324000000)
2021-09-20ArtyomPNF-PP1
Start=6/5, B1=50000, B2=2500000
2021-09-19ArtyomPNF-PP1
Start=2/7, B1=50000, B2=2500000
2021-03-19-Anonymous-NF
no factor from 2^71 to 2^72
2021-03-17-Anonymous-NF
no factor from 2^70 to 2^71
2021-03-17-Anonymous-NF
no factor from 2^69 to 2^70
2021-01-21axnNF
no factor from 2^68 to 2^69
2018-11-19TJAOINF
no factor from 2^67 to 2^68
2017-01-13Gordon SpenceNF
no factor from 2^66 to 2^67
2016-09-18JossNF-PM1
B1=297000, B2=5508000, E=6
2016-03-03ramgeisNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-12-08Squeeky_SquirrelNF-PM1
B1=170000, B2=4590000, E=6
2015-01-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-27VictordeHollanderNF
no factor from 2^63 to 2^64
2014-11-14JossNF-PM1
B1=96310
2014-08-07JossNF-PM1
B1=78155
2012-06-20GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-11-24USAFSSNF-PM1
B1=60000, B2=990000, E=6
2011-07-02markrNF
no factor to 2^62
2009-07-06Carsten KossendeyNF-PM1
B1=20000, B2=245000
2009-03-17S485122NF
no factor from 2^60 to 2^61