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

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MnStatusDetails
2952893Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
324818231928.3old
ECM
DigitsB1Curves
255000097 / 280
Estimated T-Level: 21.7
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-26Oliver Kruse0B2B5C46EAB145F21197382053
Verified2017-12-09kkmrkkblmbrbk0B2B5C46EAB145F2142246153
History
DateUserTypeResult
2023-02-11USAFSSNF-PM1
B1=360000, B2=298405800
2017-12-09kkmrkkblmbrbkC-PRP
M2952893/324818231 : 0B2B5C46EAB145F2
PRP: Verified
PRP without proof (not generated)
2017-10-26Oliver KruseC-PRP
M2952893/324818231 : 0B2B5C46EAB145F2
PRP: Verified
PRP without proof (not generated)