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Marin Mersenne 2^P-1
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MnStatusDetails
15991343Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
11493532905937005477328572579.92024-11-19 15:38:40
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
Bad2002-09-22Marcus Langanke71073C46544DF00A6934014
Bad2006-02-15Fabrice Bellet07C5C43F16F4B99D12683105
Verified (Factored)2006-10-24slawek sujkowski9E8D827D4DE7495B14304892
Verified (Factored)2007-04-07Shane Sanford9E8D827D4DE7495B3754204
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-11-26dnova25128DD967CF076611099327953
P-1 factors
DateFactorB1B2
2024-11-19114935329059370054773285716666666009985800
History
DateUserTypeResult
2024-11-26Wentao HuangCERT
PRP Certification
Proof certified good
2024-11-26dnovaC-PRP
M15991343/1149353290593700547732857 : 25128DD967CF0766
PRP proof power = 8
PRP: Verified
Proof certified good
2024-11-19timc995F-PM1
Factor: 1149353290593700547732857 / (P-1, B1=1666666, B2=6009985800)
2022-02-15-Anonymous-NF
no factor from 2^73 to 2^74
2022-02-15-Anonymous-NF
no factor from 2^72 to 2^73
2021-10-15-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-12lycornNF
no factor from 2^70 to 2^71
2020-11-09YxinityNF
no factor from 2^69 to 2^70
2018-02-18ramgeisNF
no factor from 2^68 to 2^69
2018-02-18ramgeisNF
no factor from 2^67 to 2^68
2014-07-29NesowaNF
no factor from 2^66 to 2^67
2013-09-30David CampeauNF
no factor from 2^65 to 2^66