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

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Exponent Range:










MnStatusDetails
89819Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
33951583825.0old
226343881927.82008-08-26 20:11:35
31946821931031.62008-08-26 20:11:35
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
403000000585 / 4588
Estimated T-Level: 35.6
TF below 2^113 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse8B59653C4006578E3013
Verified2017-09-21Oliver Kruse8B59653C4006578E3013
Verified2017-11-06kkmrkkblmbrbk8B59653C4006578E34331513
Verified2020-04-17Oliver Kruse82D0CD8C3FFBDA7332859253
Verified2024-02-03Wentao Huang82D0CD8C3FFBDA7337825253
History
DateUserTypeResult
2024-02-03Wentao HuangC-PRP
M89819/33951583/226343881/3194682193 : 82D0CD8C3FFBDA73
PRP: Verified
PRP without proof (small exponent)
2024-01-16masserNF-PP1
Start=2/7, B1=13000000, B2=689000000
2022-06-25George WoltmanNF-PM1
B1=1000000000, B2=70552596864750
2022-06-12George WoltmanNF-PM1
B1=1000000000
2020-04-17Oliver KruseC-PRP
M89819/33951583/226343881/3194682193 : 82D0CD8C3FFBDA73
PRP: Verified
PRP without proof (small exponent)
2017-11-06kkmrkkblmbrbkC-PRP
M89819/33951583/226343881/3194682193 : 8B59653C4006578E
PRP: Verified
PRP without proof (small exponent)
2017-09-21Oliver KruseC-PRP
M89819/33951583/226343881/3194682193 : 8B59653C4006578E
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M89819/33951583/226343881/3194682193 : 8B59653C4006578E
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M89819/33951583/226343881/3194682193 : 8B59653C4006578E
PRP without proof (not generated)
2016-12-02kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12
2008-08-26-Anonymous-F
Factor: 3194682193
2008-08-26-Anonymous-F
Factor: 226343881