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
6899
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
13799513.8old
234298931569191444.4old
55552552568612090782273656492892.2old
418459290797028773729452561972471645737121.7old
9805273145284988800372660866909911888793622097617750166.12021-03-29 14:16:26
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000002813 / 16550
Estimated T-Level: 45.8 ⓘ
TF below 2^147 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver Kruse573DBBB403B006F94013
Factored
No proof (small exponent)
2017-10-02kkmrkkblmbrbk573DBBB403B006F94013
Factored
No proof (small exponent)
2017-12-07ATH573DBBB403B006F94528913
Factored
No proof (small exponent)
2020-04-17Oliver KruseE567ED715768FE984367353
Verified
No proof (small exponent)
2021-03-30Oliver KruseE567ED715768FE985632853
Verified
No proof (small exponent)
2021-03-30mnd9E567ED715768FE985414153
Factored
No proof (small exponent)
2022-05-12Jorge CoveiroE567ED715768FE98138853
History
DateUserTypeResult
2025-03-23masserNF-PP1Start=118/23, B1=1000000000, B2=999000000000
2025-03-15masserNF-PP1Start=6/5, B1=1000000000, B2=999000000000
2025-03-07masserNF-PP1Start=2/7, B1=1000000000, B2=999000000000
2023-08-18-anonymous-NF-PM1B1=35000000000, B2=149103333456127050
2022-05-12Jorge CoveiroC-PRPM6899/13799 : E567ED715768FE98
2021-08-27Seth_TrNF-PM1B1=400000000
2021-03-30mnd9C-PRPM6899/13799/23429893156919/5555255256861209078227365649/4184592907970287737294525619724716457/98052731452849888003726608669099118887936220976177 : E567ED715768FE98
2021-03-30Oliver KruseC-PRPM6899/13799/23429893156919/5555255256861209078227365649/4184592907970287737294525619724716457/98052731452849888003726608669099118887936220976177 : E567ED715768FE98
2021-03-29Ryan PropperF-ECMFactor: 98052731452849888003726608669099118887936220976177
2020-04-17Oliver KruseC-PRPM6899/13799/23429893156919/5555255256861209078227365649/4184592907970287737294525619724716457 : E567ED715768FE98
2017-12-07ATHC-PRPM6899/13799/23429893156919/5555255256861209078227365649/4184592907970287737294525619724716457 : 573DBBB403B006F9
2017-10-02kkmrkkblmbrbkC-PRPM6899/13799/23429893156919/5555255256861209078227365649/4184592907970287737294525619724716457 : 573DBBB403B006F9
2017-09-21Oliver KruseC-PRPM6899/known_factors : 573DBBB403B006F9