Marin Mersenne 2^P-1
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MnStatusDetails
3243763Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
88250419265942490171962.92011-09-09 09:25:31
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)John Emert94982BC9951EC41C0
Verified (Factored)Richard McDonald94982BC9951EC41C0
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-11-02Oliver Kruse72B59984FA03A6D21207734953
Verified2017-12-13ATH72B59984FA03A6D21195860053
History
DateUserTypeResult
2022-09-07JossNF-PM1
B1=1081254, B2=226749600
2022-04-05LordJuliusNF
no factor from 2^66 to 2^67
2022-04-05LordJuliusNF
no factor from 2^65 to 2^66
2022-04-05LordJuliusNF
no factor from 2^64 to 2^65
2022-04-05LordJuliusNF
no factor from 2^63 to 2^64
2022-04-05LordJuliusNF
no factor from 2^1 to 2^62
2022-01-24JossNF-PM1
B1=1081254, B2=119912100
2021-07-10JossNF
no factor from 2^67 to 2^68
2021-01-17JossNF-PM1
B1=324376, B2=3243763, E=6
2020-12-25JossNF-PM1
B1=108125
2020-10-31Ethan O'ConnorNF
no factor from 2^1 to 2^62
2017-12-13ATHC-PRP
M3243763/8825041926594249017 : 72B59984FA03A6D2
PRP: Verified
PRP without proof (not generated)
2017-11-02Oliver KruseC-PRP
M3243763/8825041926594249017 : 72B59984FA03A6D2
PRP: Verified
PRP without proof (not generated)
2011-09-09USAFSSF
Factor: 8825041926594249017
2011-07-25Carsten KossendeyNF
no factor from 2^61 to 2^62
2009-07-04Carsten KossendeyNF-PM1
B1=15000, B2=191250
2009-04-04S485122NF
no factor from 2^60 to 2^61