Marin Mersenne 2^P-1
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MnStatusDetails
17862599Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
26898045977434845013459372581.22022-07-06 02:46:39
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)2003-02-24Paul CallahanC0EDAF4A3CE3FF914809589
Verified (Factored)2007-03-20The MolnarsC0EDAF4A3CE3FF9115313308
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2025-04-04Sly_0074470E40C1D3237F01114475453
P-1 factors
DateFactorB1B2
2022-07-0626898045977434845013459371000000500458530
History
DateUserTypeResult
2025-04-04Peter EvansCERT
PRP Certification
Proof certified good
2025-04-04Sly_007C-PRP
M17862599/2689804597743484501345937 : 4470E40C1D3237F0
PRP proof power = 8
PRP: Verified
Proof certified good
2022-07-06alpertronF-PM1
Factor: 2689804597743484501345937 / (P-1, B1=1000000, B2=500458530)
2021-04-14-Anonymous-NF
no factor from 2^72 to 2^73
2021-04-13-Anonymous-NF
no factor from 2^71 to 2^72
2021-04-13-Anonymous-NF
no factor from 2^70 to 2^71
2020-03-30lycornNF
no factor from 2^69 to 2^70
2018-03-11ramgeisNF
no factor from 2^68 to 2^69
2018-03-11ramgeisNF
no factor from 2^67 to 2^68
2014-08-21NesowaNF
no factor from 2^66 to 2^67