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
8069Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
31336836430666450871961.4old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000008864 / 9201
Estimated T-Level: 44.8
TF below 2^144 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseBC871E8AFFB373821013
Verified2017-10-12kkmrkkblmbrbkBC871E8AFFB373821267813
Verified2020-04-17Oliver Kruse9EDB13ADF34D55921369553
Verified2024-07-01kkmrkkblmbrbk9EDB13ADF34D55921704753
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M8069/3133683643066645087 : 9EDB13ADF34D5592
PRP: Verified
PRP without proof (small exponent)
2023-05-28JacobZNF-PM1
B1=73000000000, B2=299074993103236350
2021-12-16Lisander ViaeneNF-PM1
B1=100000000
2020-04-17Oliver KruseC-PRP
M8069/3133683643066645087 : 9EDB13ADF34D5592
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M8069/3133683643066645087 : BC871E8AFFB37382
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M8069/3133683643066645087 : BC871E8AFFB37382
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M8069/3133683643066645087 : BC871E8AFFB37382
PRP without proof (not generated)