Marin Mersenne 2^P-1
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MnStatusDetails
18022883Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
116194155397068725824972373.32022-01-13 04:29:30
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)2003-06-30Chris Beckenbach0CF8BB7FEC77737012125655
Verified (Factored)2007-03-20Stephen Sellars0CF8BB7FEC77737015532774
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2025-05-09Perig317C33EC51D06D6211192171453
History
DateUserTypeResult
2025-05-09NotoriousDJDCERT
PRP Certification
Proof certified good
2025-05-09PerigC-PRP
M18022883/11619415539706872582497 : 317C33EC51D06D62
PRP proof power = 8
PRP: Verified
Proof certified good
2022-01-13Smok_bmv F
Factor: 11619415539706872582497 / TF: 73-74*
2021-12-10RichD0NF
no factor from 2^72 to 2^73
2021-10-08-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-11SRBaseNF
no factor from 2^70 to 2^71
2020-03-05lycornNF
no factor from 2^69 to 2^70
2017-09-07ramgeisNF
no factor from 2^68 to 2^69
2016-03-21Mark RoseNF
no factor from 2^66 to 2^67
2015-11-23mikrNF
no factor from 2^67 to 2^68