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

PrimeNet Exponent Status

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MnStatusDetails
2014853Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
28161036222171341.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000115 / 640
Estimated T-Level: 25.9
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-05Oliver KruseACE9AE6D67F7C7D31013
Verified2017-11-13kkmrkkblmbrbkACE9AE6D67F7C7D31153138813
History
DateUserTypeResult
2017-11-13kkmrkkblmbrbkC-PRP
M2014853/2816103622217 : ACE9AE6D67F7C7D3
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M2014853/2816103622217 : ACE9AE6D67F7C7D3
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12