Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
2569109Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
3276835968201861771858.2old
ECM
DigitsB1Curves
2550000148 / 280
Estimated T-Level: 22.6
TF below 2^70 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Liam T.07389A016143EF530
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-15Oliver Kruse721998660F2B2386187926953
Verified2017-12-01kkmrkkblmbrbk721998660F2B23861176571753
History
DateUserTypeResult
2022-08-31USAFSSNF-PM1
B1=480000, B2=423235890
2017-12-01kkmrkkblmbrbkC-PRP
M2569109/327683596820186177 : 721998660F2B2386
PRP: Verified
PRP without proof (not generated)
2017-10-15Oliver KruseC-PRP
M2569109/327683596820186177 : 721998660F2B2386
PRP: Verified
PRP without proof (not generated)