Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
2963683Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
20957272112275110411960.92009-02-12 06:45:02
ECM
DigitsB1Curves
255000067 / 280
Estimated T-Level: 21.2
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Greg Rigole0BA401E0041C01910
Verified (Factored)1999-06-06Diablo_30BA401E0041C01911165241
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-26Oliver Kruse60FF3C78A27623F81123659353
Verified2017-12-09kkmrkkblmbrbk60FF3C78A27623F81137756953
History
DateUserTypeResult
2023-02-16USAFSSNF-PM1
B1=360000, B2=298405800
2017-12-09kkmrkkblmbrbkC-PRP
M2963683/2095727211227511041 : 60FF3C78A27623F8
PRP: Verified
PRP without proof (not generated)
2017-10-26Oliver KruseC-PRP
M2963683/2095727211227511041 : 60FF3C78A27623F8
PRP: Verified
PRP without proof (not generated)
2009-02-12Sturle SundeF
Factor: 2095727211227511041