Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
11701Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
70207516.1old
187217617.52008-08-26 19:58:35
337339831928.32008-08-26 19:58:35
2942193049654697149032168.02008-08-26 19:58:35
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000003748 / 9201
Estimated T-Level: 42.0
TF below 2^135 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse244D9C8C7EF533DA4013
Verified2017-10-02kkmrkkblmbrbk244D9C8C7EF533DA4013
Verified2017-12-07ATH244D9C8C7EF533DA41111013
Verified2020-04-17Oliver Kruse1D57C28172EB67A44623153
Verified2024-07-01kkmrkkblmbrbk1D57C28172EB67A44468553
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M11701/187217/294219304965469714903/337339831/70207 : 1D57C28172EB67A4
PRP: Verified
PRP without proof (small exponent)
2023-01-20-Anonymous-NF-PM1
B1=100000000000, B2=122192573512709700
2020-04-17Oliver KruseC-PRP
M11701/70207/187217/337339831/294219304965469714903 : 1D57C28172EB67A4
PRP: Verified
PRP without proof (small exponent)
2017-12-07ATHC-PRP
M11701/70207/187217/337339831/294219304965469714903 : 244D9C8C7EF533DA
PRP: Verified
PRP without proof (small exponent)
2017-10-02kkmrkkblmbrbkC-PRP
M11701/70207/187217/337339831/294219304965469714903 : 244D9C8C7EF533DA
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M11701/known_factors : 244D9C8C7EF533DA
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-08-26-Anonymous-F-ECM
Factor: 294219304965469714903
2008-08-26-Anonymous-F
Factor: 337339831
2008-08-26-Anonymous-F
Factor: 187217