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
8689Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
10088276571029.9old
16390755831030.6old
4096295413191238.6old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000007879 / 16550
Estimated T-Level: 47.4
TF below 2^152 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseA9D3DB89DF3645743013
Verified2017-10-12kkmrkkblmbrbkA9D3DB89DF3645743786113
Verified2020-04-17Oliver Kruse0518E32F076D77143438153
Verified2024-07-01kkmrkkblmbrbk0518E32F076D77143239353
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M8689/1008827657/1639075583/409629541319 : 0518E32F076D7714
PRP: Verified
PRP without proof (small exponent)
2023-08-11JacobZNF-PM1
B1=67000000000, B2=265422648792401100
2021-12-16Lisander ViaeneNF-PM1
B1=100000000
2020-04-17Oliver KruseC-PRP
M8689/1008827657/1639075583/409629541319 : 0518E32F076D7714
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M8689/1008827657/1639075583/409629541319 : A9D3DB89DF364574
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M8689/1008827657/1639075583/409629541319 : A9D3DB89DF364574
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M8689/1008827657/1639075583/409629541319 : A9D3DB89DF364574
PRP without proof (not generated)