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
9839Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
34747365899198564237211369765298333108.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000006809 / 16550
Estimated T-Level: 47.1
TF below 2^151 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse9DC10F3DDCDDD6A61013
Verified2017-10-12kkmrkkblmbrbk9DC10F3DDCDDD6A61259313
Verified2020-04-17Oliver Kruse4210015F4A94EDD91944953
Verified2024-07-01kkmrkkblmbrbk4210015F4A94EDD91682253
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M9839/347473658991985642372113697652983 : 4210015F4A94EDD9
PRP: Verified
PRP without proof (small exponent)
2023-06-14JacobZNF-PM1
B1=58000000000, B2=241250667952694400
2020-04-17Oliver KruseC-PRP
M9839/347473658991985642372113697652983 : 4210015F4A94EDD9
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M9839/347473658991985642372113697652983 : 9DC10F3DDCDDD6A6
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M9839/347473658991985642372113697652983 : 9DC10F3DDCDDD6A6
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M9839/347473658991985642372113697652983 : 9DC10F3DDCDDD6A6
PRP without proof (not generated)