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
4479071Factored
FactorDigitsBitsDate
8958143723.1old
35832569825.12008-09-07 23:41:23
853108065409729931756.22015-03-19 12:26:06
2002939063423259310072167.42022-08-03 11:20:47
998723304603270103372092376.42023-07-21 06:25:50
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)2017-11-17Oliver Kruse8C5FD0C0128665E83160439053
Verified (Factored)2018-01-01kkmrkkblmbrbk8C5FD0C0128665E83181904653
Verified (Factored)2022-08-04Wentao Huang8C5FD0C0128665E84146222453
Verified2023-07-27Perig8C5FD0C0128665E85136171753
P-1 factors
DateFactorB1B2
2023-07-2199872330460327010337209336000195491010
History
DateUserTypeResult
2023-07-27curtiscCERT
PRP Certification
Proof certified good
2023-07-27PerigC-PRP
M4479071/8958143/35832569/85310806540972993/200293906342325931007/99872330460327010337209 : 8C5FD0C0128665E8
PRP proof power = 7
PRP: Verified
Proof certified good
2023-07-21USAFSSF-PM1
Factor: 99872330460327010337209 / (P-1, B1=336000, B2=195491010)
2022-08-10LordJuliusNF
no factor from 2^66 to 2^67
2022-08-10LordJuliusNF
no factor from 2^65 to 2^66
2022-08-10LordJuliusNF
no factor from 2^64 to 2^65
2022-08-10LordJuliusNF
no factor from 2^63 to 2^64
2022-08-04J.R. AllenNF
no factor from 2^64 to 2^65
2022-08-04J.R. AllenNF
no factor from 2^63 to 2^64
2022-08-04Ben DeloCERT
PRP Certification
Proof certified good
2022-08-04Wentao HuangC-PRP
M4479071/8958143/35832569/85310806540972993/200293906342325931007 : 8C5FD0C0128665E8
PRP proof power = 7
PRP: Verified (Factored)
Proof certified good
2022-08-04J.R. AllenF
Factor: 320993277159367 / TF: 1-63
2022-08-04J.R. AllenF
Factor: 85310806540972993 / TF: 1-63
2022-08-04J.R. AllenF
Factor: 35832569 / TF: 1-63
2022-08-04J.R. AllenF
Factor: 8958143 / TF: 1-63
2022-08-03TJAOIF
Factor: 200293906342325931007 / TF: 67-68
2018-01-01kkmrkkblmbrbkC-PRP
M4479071/8958143/35832569/85310806540972993 : 8C5FD0C0128665E8
PRP: Verified (Factored)
PRP without proof (not generated)
2017-11-17Oliver KruseC-PRP
M4479071/8958143/35832569/85310806540972993 : 8C5FD0C0128665E8
PRP: Verified (Factored)
PRP without proof (not generated)
2015-03-19TJAOIF
Factor: 85310806540972993 / TF: 56-57
2008-09-07Will EdgingtonF
Factor: 35832569