Marin Mersenne 2^P-1
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MnStatusDetails
11606681Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
8006920792399543237581957493716819540738125.92025-02-27 19:59:28
ECM
DigitsB1Curves
255000011 / 280
Estimated T-Level: 20.2 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2001-02-11Steve Kass40D3351DB842B5077161520
Verified (Factored)2004-05-11Darryl A. Linde40D3351DB842B5073891623
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2025-03-01yuriy_5-111953ECF20D8E1CD11028970753
P-1 factors
DateFactorB1B2
2025-02-278006920792399543237581957493716819540786426724161302901760
History
DateUserTypeResult
2025-03-01gszpetkoCERT
PRP Certification
Proof certified good
2025-03-01yuriy_5-1C-PRP
M11606681/80069207923995432375819574937168195407 : 11953ECF20D8E1CD
PRP proof power = 8
PRP: Verified
Proof certified good
2025-02-27yuriy_5-1F-PM1
Factor: 80069207923995432375819574937168195407 / (P-1, B1=86426724, B2=161302901760)
2025-01-20yuriy_5-1NF
no factor from 2^74 to 2^75
2024-09-02yuriy_5-1NF
no factor from 2^73 to 2^74
2024-08-06yuriy_5-1NF
no factor from 2^72 to 2^73
2024-05-21yuriy_5-1NF-PM1
B1=12709318, B2=111034753830
2024-04-22yuriy_5-1NF-PM1
B1=2321352, B2=2360509536
2023-01-08Naegi MakotoNF
no factor from 2^71 to 2^72
2021-08-16SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2020-02-17riccardo ubertiNF-PM1
B1=430000, B2=8500000, E=12
2018-01-03ramgeisNF
no factor from 2^68 to 2^69
2018-01-03ramgeisNF
no factor from 2^67 to 2^68
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2014-08-27NRNF
no factor from 2^65 to 2^66
2013-11-05lycornNF
no factor from 2^64 to 2^65