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:





MnDetails
9839
Composite, with 1 known prime factor. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
34747365899198564237211369765298333108.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000006846 / 16550
Estimated T-Level: 47.1
TF below 2^151 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Verified
No proof (small exponent)
2017-09-21Oliver Kruse9DC10F3DDCDDD6A61013
Verified
No proof (small exponent)
2017-10-12kkmrkkblmbrbk9DC10F3DDCDDD6A61259313
Verified
No proof (small exponent)
2020-04-17Oliver Kruse4210015F4A94EDD91944953
Verified
No proof (small exponent)
2024-07-01kkmrkkblmbrbk4210015F4A94EDD91682253
History
DateUserTypeResult
2025-03-21masserNF-PP1Start=141/19, B1=1000000000, B2=999000000000
2024-07-01kkmrkkblmbrbkC-PRPM9839/347473658991985642372113697652983 : 4210015F4A94EDD9
2023-06-14JacobZNF-PM1B1=58000000000, B2=241250667952694400
2020-04-17Oliver KruseC-PRPM9839/347473658991985642372113697652983 : 4210015F4A94EDD9
2017-10-12kkmrkkblmbrbkC-PRPM9839/347473658991985642372113697652983 : 9DC10F3DDCDDD6A6
2017-09-21Oliver KruseC-PRPM9839/347473658991985642372113697652983 : 9DC10F3DDCDDD6A6
2017-09-21Oliver KruseC-PRPM9839/347473658991985642372113697652983 : 9DC10F3DDCDDD6A6
2005-02-18-anonymous-F-ECMFactor: 347473658991985642372113697652983
2003-03-16-anonymous-NF-PM1B1=4290000000
2002-12-09-anonymous-NFno factor TF: 1-57
2002-11-09-anonymous-NF-PM1B1=3221225472, B2=4290000000, E=48
2002-09-07-anonymous-NF-PM1B1=2147483648, B2=4290000000, E=48
2002-06-15-anonymous-NF-PM1B1=1073741824, B2=4290000000, E=48
2001-07-17-anonymous-NF-PM1B1=3000000000, B2=4290000000
2001-06-30-anonymous-NF-PM1B1=43000000, B2=4290000000
2001-02-11-anonymous-NF-PM1B1=1000000, B2=100000000
2000-06-29-anonymous-NFno factor TF: 1-56
2000-06-28-anonymous-NFno factor TF: 1-56
2000-03-01-anonymous-NFno factor TF: 54-55
1999-12-30-anonymous-NFno factor TF: 53-54
1999-09-22-anonymous-NFno factor TF: 52-53