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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2291327Factored
FactorDigitsBitsDate
88665602030871343.0old
ECM
DigitsB1Curves
255000077 / 280
Estimated T-Level: 21.4
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-11Oliver Kruse901386580B2486BD1013
Verified2017-11-22kkmrkkblmbrbk901386580B2486BD1185764313
History
DateUserTypeResult
2017-11-22kkmrkkblmbrbkC-PRP
M2291327/8866560203087 : 901386580B2486BD
PRP: Verified
PRP without proof (not generated)
2017-10-11Oliver KruseC-PRP
M2291327/8866560203087 : 901386580B2486BD
PRP: Verified
PRP without proof (not generated)
2016-04-22alpertronNF-PM1
B1=500000, B2=15000000, E=12