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
10883Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
21767514.4old
7574569722.92008-08-26 19:58:33
221239418711134.42008-08-26 19:58:33
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001525 / 9201
Estimated T-Level: 40.8
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 Kruse37AB96FB63F90CEF3013
Verified2017-10-12kkmrkkblmbrbk37AB96FB63F90CEF3886213
Verified2020-04-17Oliver Kruse3A5E9BEB0861D1783836253
Verified (Factored)2022-05-12Jorge Coveiro3A5E9BEB0861D1781450853
Verified2024-07-01kkmrkkblmbrbk3A5E9BEB0861D1783178753
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M10883/21767/22123941871/7574569 : 3A5E9BEB0861D178
PRP: Verified
PRP without proof (small exponent)
2022-12-29-Anonymous-NF-PM1
B1=100000000000, B2=122192573512709700
2022-05-12Jorge CoveiroC-PRP
M10883/21767 : 3A5E9BEB0861D178
PRP: Verified
PRP without proof (small exponent)
2020-04-17Oliver KruseC-PRP
M10883/21767/7574569/22123941871 : 3A5E9BEB0861D178
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10883/21767/7574569/22123941871 : 37AB96FB63F90CEF
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10883/21767/7574569/22123941871 : 37AB96FB63F90CEF
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10883/21767/7574569/22123941871 : 37AB96FB63F90CEF
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-08-26-Anonymous-F
Factor: 22123941871
2008-08-26-Anonymous-F
Factor: 7574569