Marin Mersenne 2^P-1
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MnStatusDetails
11614541Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
6402854360571168216172169.12021-08-06 14:39:29
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)2001-01-08Lyle BergmanD57B723EFFB887AE6292228
Verified (Factored)2005-01-10Shane SanfordD57B723EFFB887AE4184659
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-09-18RichD0DB6F8F41AFD67C001593862653
History
DateUserTypeResult
2025-06-06yuriy_5-1NF
no factor from 2^70 to 2^71
2025-05-05yuriy_5-1F
Factor: 640285436057116821617 / TF: 69-70
2025-03-11yuriy_5-1NF-PM1
B1=6968724, B2=448721460
2024-08-21yuriy_5-1NF-PM1
B1=2800000, B2=5499082050
2021-09-18Ben DeloCERT
PRP Certification
Proof certified good
2021-09-18RichD0C-PRP
M11614541/640285436057116821617 : DB6F8F41AFD67C00
PRP proof power = 8
PRP: Verified
Proof certified good
2021-08-22LaurVNF-PM1
B1=6189107, B2=185673210
2021-08-06SRBaseF
Factor: 640285436057116821617 / TF: 69-70*
2019-11-14riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
2018-01-09ramgeisNF
no factor from 2^68 to 2^69
2018-01-09ramgeisNF
no factor from 2^67 to 2^68
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-11-05lycornNF
no factor from 2^64 to 2^65