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
2064113Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
7237346364195911549.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000161 / 640
Estimated T-Level: 26.3
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-06Oliver KruseAB5CA2948A6DCD5F1013
Verified2017-11-16kkmrkkblmbrbkAB5CA2948A6DCD5F191216313
History
DateUserTypeResult
2017-11-16kkmrkkblmbrbkC-PRP
M2064113/723734636419591 : AB5CA2948A6DCD5F
PRP: Verified
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2064113/723734636419591 : AB5CA2948A6DCD5F
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12