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
4707377Factored
FactorDigitsBitsDate
11493531683211340.1old
1876073021307462171857.42015-06-16 11:12:43
393588134204933591272065.12018-05-30 12:28:54
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
Verified (Factored)2017-11-18kkmrkkblmbrbkD7F0B3544CC9DE8A246075753
Verified (Factored)2018-03-18Luigi MorelliD7F0B3544CC9DE8A2293185353
Verified2018-06-01_p95holder_D7F0B3544CC9DE8A3261395853
History
DateUserTypeResult
2022-11-01USAFSSNF-PM1
B1=240000, B2=156930060
2022-04-23J.R. AllenNF
no factor from 2^64 to 2^65
2022-04-23J.R. AllenNF
no factor from 2^63 to 2^64
2022-04-23J.R. AllenF
Factor: 187607302130746217 / TF: 1-63
2022-04-23J.R. AllenF
Factor: 1149353168321 / TF: 1-63
2018-06-01_p95holder_C-PRP
M4707377/1149353168321/187607302130746217/39358813420493359127 : D7F0B3544CC9DE8A
PRP: Verified
PRP without proof (not generated)
2018-05-30TJAOIF
Factor: 39358813420493359127 / TF: 65-66
2018-03-18Luigi MorelliC-PRP
M4707377/1149353168321/187607302130746217 : D7F0B3544CC9DE8A
PRP: Verified
PRP without proof (not generated)
2017-11-18kkmrkkblmbrbkC-PRP
M4707377/1149353168321/187607302130746217 : D7F0B3544CC9DE8A
PRP: Verified
PRP without proof (not generated)
2015-06-16TJAOIF
Factor: 187607302130746217 / TF: 57-58