Marin Mersenne 2^P-1
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MnStatusDetails
11516273Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
717616106836574583464412375.92024-04-05 14:38:15
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
Bad2001-06-17benDE95085224F545488277875
Verified (Factored)2001-11-24Alan VidmarF1AB99AA9BBD393D11140641
Verified (Factored)2005-02-02Daniel SwansonF1AB99AA9BBD393D8722058
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-04-12InsolentJaguar06D447FE887B7E711648229253
P-1 factors
DateFactorB1B2
2024-04-057176161068365745834644125000007054972470
History
DateUserTypeResult
2024-04-12George WoltmanCERT
PRP Certification
Proof certified good
2024-04-12InsolentJaguarC-PRP
M11516273/71761610683657458346441 : 06D447FE887B7E71
PRP proof power = 8
PRP: Verified
Proof certified good
2024-04-05linamentF-PM1
Factor: 71761610683657458346441 / (P-1, B1=2500000, B2=7054972470)
2024-04-04linamentNF-PM1
B1=2500000
2023-02-19Naegi MakotoNF
no factor from 2^71 to 2^72
2021-10-03mikrNF
no factor from 2^70 to 2^71
2021-09-25lycornNF
no factor from 2^69 to 2^70
2018-01-15ramgeisNF
no factor from 2^68 to 2^69
2018-01-15ramgeisNF
no factor from 2^67 to 2^68
2016-01-15VictordeHollanderNF
no factor from 2^66 to 2^67
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2014-10-30ThaNF-PM1
B1=300000, B2=6000000, E=12
2013-11-08lycornNF
no factor from 2^64 to 2^65