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
4999151Factored
FactorDigitsBitsDate
9092777884107431549.7old
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1
TF below 2^62 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbk5F72EAC21B047AAF1013
Verified2018-04-23ATH5F72EAC21B047AAF1314646113
History
DateUserTypeResult
2023-09-24USAFSSNF-PM1
B1=256000, B2=105522060
2018-04-23ATHC-PRP
M4999151/909277788410743 : 5F72EAC21B047AAF
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M4999151/909277788410743 : 5F72EAC21B047AAF
PRP: Verified
PRP without proof (not generated)