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
2879Factored
FactorDigitsBitsDate
27702659291031.4old
494401226891135.5old
2078003944246895921923949095613097.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000002925 / 16550
Estimated T-Level: 45.9
TF below 2^147 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseCD990DE3C5CB754A3013
Verified2017-10-02kkmrkkblmbrbkCD990DE3C5CB754A3013
Verified2017-12-07ATHCD990DE3C5CB754A3162213
Verified2020-04-17Oliver Kruse7EF9AFEB20C94010361253
Verified2024-02-03Wentao Huang7EF9AFEB20C940103186753
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M2879/2770265929/49440122689/207800394424689592192394909561 : 7EF9AFEB20C94010
PRP: Verified
PRP without proof (small exponent)
2022-02-25mikrNF-PM1
B1=60000000000, B2=314806422904433460
2021-07-07ViliamFNF-PM1
B1=1000000000, B2=191000000000
2020-04-17Oliver KruseC-PRP
M2879/2770265929/49440122689/207800394424689592192394909561 : 7EF9AFEB20C94010
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M2879/2770265929/49440122689/207800394424689592192394909561 : CD990DE3C5CB754A
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M2879/2770265929/49440122689/207800394424689592192394909561 : CD990DE3C5CB754A
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M2879/known_factors : CD990DE3C5CB754A
PRP without proof (not generated)