Marin Mersenne 2^P-1
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MnStatusDetails
13714843Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
247718357487896212148405448046193552824140130.92023-06-28 03:18:35
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2002-03-03Norm Eberly21F365E9813154B78016239
Verified (Factored)2005-03-20John Sanford21F365E9813154B72498077
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-06-29Naegi MakotoB150B4C51A9E91831786530553
P-1 factors
DateFactorB1B2
2023-06-28247718357487896212148405448046193552824116000001656779670
History
DateUserTypeResult
2023-06-29curtiscCERT
PRP Certification
Proof certified good
2023-06-29Naegi MakotoC-PRP
M13714843/2477183574878962121484054480461935528241 : B150B4C51A9E9183
PRP proof power = 8
PRP: Verified
Proof certified good
2023-06-28nordiF-PM1
Factor: 2477183574878962121484054480461935528241 / (P-1, B1=1600000, B2=1656779670)
2023-03-09nordiNF-PM1
B1=1600000
2021-09-24Jon PaceNF
no factor from 2^71 to 2^72
2021-09-04SRBaseNF
no factor from 2^70 to 2^71
2021-08-08SRBaseNF
no factor from 2^69 to 2^70
2018-01-14ramgeisNF
no factor from 2^68 to 2^69
2017-12-23-Anonymous-NF
no factor from 2^67 to 2^68
2015-08-16NesowaNF
no factor from 2^66 to 2^67
2014-07-02NesowaNF
no factor from 2^65 to 2^66