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

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Exponent Range:










MnStatusDetails
10903Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
40668191825.3old
17243599469172373867691311142325864136117.12015-04-13 22:35:26
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001592 / 9201
Estimated T-Level: 40.9
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 Kruse3A0C513B5C8187982013
Verified2017-10-02kkmrkkblmbrbk3A0C513B5C8187982013
Verified2017-10-12kkmrkkblmbrbk3A0C513B5C81879821034913
Verified2020-04-17Oliver Kruse276F645F30DA52272159053
Verified2024-07-01kkmrkkblmbrbk276F645F30DA52272858053
P-1 factors
DateFactorB1B2
2022-12-29172435994691723738676913111423258641100000000000122192573512709696
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M10903/172435994691723738676913111423258641/40668191 : 276F645F30DA5227
PRP: Verified
PRP without proof (small exponent)
2022-12-29-Anonymous-F-PM1
Factor: 172435994691723738676913111423258641 / (P-1, B1=100000000000, B2=122192573512709700)
2020-04-17Oliver KruseC-PRP
M10903/40668191/172435994691723738676913111423258641 : 276F645F30DA5227
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10903/40668191/172435994691723738676913111423258641 : 3A0C513B5C818798
PRP: Verified
PRP without proof (not generated)
2017-10-02kkmrkkblmbrbkC-PRP
M10903/40668191/172435994691723738676913111423258641 : 3A0C513B5C818798
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10903/40668191/172435994691723738676913111423258641 : 3A0C513B5C818798
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10903/40668191/172435994691723738676913111423258641 : 3A0C513B5C818798
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12