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
126949Factored
FactorDigitsBitsDate
1299397178663886060830712476.82008-12-23 14:05:09
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000214 / 1566
Estimated T-Level: 30.7
TF below 2^97 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown2E150
Verified (Factored)Reuven Singer130393C7DACEAE150
Verified (Factored)Brian J. Beesley130393C7DACEAE150
Verified (Factored)Eivind Triel130393C7DACEAE1517641
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse6D68E385697195CE1013
Verified2017-10-13kkmrkkblmbrbk6D68E385697195CE112137413
Verified2020-04-17Oliver Kruse06BF3C1949742A5212813753
Verified2024-02-03Wentao Huang06BF3C1949742A5218181853
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M126949/129939717866388606083071 : 06BF3C1949742A52
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-17Oliver KruseC-PRP
M126949/129939717866388606083071 : 06BF3C1949742A52
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M126949/129939717866388606083071 : 6D68E385697195CE
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M126949/129939717866388606083071 : 6D68E385697195CE
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M126949/129939717866388606083071 : 6D68E385697195CE
PRP without proof (not generated)
2017-03-20kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-12-23axnF-ECM
Factor: 129939717866388606083071