Marin Mersenne 2^P-1
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MnStatusDetails
11833427Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
3845464617823626537054972478.32021-07-27 05:16:36
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)2001-02-25Victor Lembryk692EBCAFEB2BBA5B8859033
Verified (Factored)2004-08-20Tivadar Szemethy692EBCAFEB2BBA5B2906400
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2021-11-14Luminescence00410607724A8E8A1941305353
P-1 factors
DateFactorB1B2
2021-07-273845464617823626537054976189107185673210
History
DateUserTypeResult
2021-11-14LookASCERT
PRP Certification
Proof certified good
2021-11-14LuminescenceC-PRP
M11833427/384546461782362653705497 : 00410607724A8E8A
PRP proof power = 8
PRP: Verified
Proof certified good
2021-07-27LaurVF-PM1
Factor: 384546461782362653705497 / (P-1, B1=6189107, B2=185673210)
2019-06-26riccardo 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
2016-02-15VictordeHollanderNF
no factor from 2^66 to 2^67
2013-11-02NesowaNF
no factor from 2^65 to 2^66
2013-10-23lycornNF
no factor from 2^64 to 2^65