Marin Mersenne 2^P-1
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MnStatusDetails
11776421Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
181069634920610856625692373.92022-02-12 10:29:02
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2001-04-29Richard Otter2340BFBBF1CB3D852492253
Verified (Factored)2004-06-04Stig M. Valstad2340BFBBF1CB3D857224892
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-02-18Poao297507307B2466591701882353
P-1 factors
DateFactorB1B2
2022-02-12181069634920610856625692000000642123300
History
DateUserTypeResult
2022-02-18curtiscCERT
PRP Certification
Proof certified good
2022-02-18PoaoC-PRP
M11776421/18106963492061085662569 : 297507307B246659
PRP proof power = 8
PRP: Verified
Proof certified good
2022-02-12Architects CubedF-PM1
Factor: 18106963492061085662569 / (P-1, B1=2000000, B2=642123300)
2021-10-29-Anonymous-NF
no factor from 2^71 to 2^72
2021-08-18SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2019-11-04riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
2018-01-07ramgeisNF
no factor from 2^68 to 2^69
2018-01-07ramgeisNF
no factor from 2^67 to 2^68
2016-02-08VictordeHollanderNF
no factor from 2^66 to 2^67
2013-11-26NesowaNF
no factor from 2^65 to 2^66
2013-10-25lycornNF
no factor from 2^64 to 2^65