Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
6599Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
572961243702355291184916232685.6old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001731 / 9201
Estimated T-Level: 40.9
TF below 2^131 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseE95726CFBB22C5211013
Verified2017-10-12kkmrkkblmbrbkE95726CFBB22C5211525313
Verified2020-04-17Oliver Kruse489E859A2133E7681157653
Verified2024-02-03Wentao Huang489E859A2133E7681301153
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M6599/57296124370235529118491623 : 489E859A2133E768
PRP: Verified
PRP without proof (small exponent)
2023-08-10-Anonymous-NF-PM1
B1=37000000000, B2=148599418701633900
2021-12-17Oliver KruseNF-PM1
B1=1000000000, B2=1003954060639530
2020-04-17Oliver KruseC-PRP
M6599/57296124370235529118491623 : 489E859A2133E768
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M6599/57296124370235529118491623 : E95726CFBB22C521
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6599/57296124370235529118491623 : E95726CFBB22C521
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M6599/57296124370235529118491623 : E95726CFBB22C521
PRP without proof (not generated)