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
2379973Factored
FactorDigitsBitsDate
929855451111136.4old
2631631345031237.92008-07-14 20:23:27
47683684244024024234835360165060958336118.52018-06-09 18:07:22
ECM
DigitsB1Curves
255000076 / 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
Verified (Factored)2017-10-13kkmrkkblmbrbk8D0A78E376A69F07279734653
Verified (Factored)2017-11-02Oliver Kruse8D0A78E376A69F07248238653
Verified2018-06-10Oliver Kruse8D0A78E376A69F07347456953
P-1 factors
DateFactorB1B2
2018-06-09476836842440240242348353601650609583200000060000000
History
DateUserTypeResult
2018-06-10Oliver KruseC-PRP
M2379973/92985545111/263163134503/476836842440240242348353601650609583 : 8D0A78E376A69F07
PRP: Verified
PRP without proof (not generated)
2018-06-09alpertronF-PM1
Factor: 476836842440240242348353601650609583 / (P-1, B1=2000000, B2=60000000, E=12)
2017-11-02Oliver KruseC-PRP
M2379973/92985545111/263163134503 : 8D0A78E376A69F07
PRP: Verified
PRP without proof (not generated)
2017-10-13kkmrkkblmbrbkC-PRP
M2379973/92985545111/263163134503 : 8D0A78E376A69F07
PRP: Verified
PRP without proof (not generated)
2008-07-14George WoltmanF-ECM
Factor: 263163134503