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
10663Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
170609617.4old
1867901150321282883543935526073097.22008-10-16 23:57:25
9198686360099079418957143255555547335116.12010-05-13 18:12:11
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001319 / 9201
Estimated T-Level: 40.7
TF below 2^130 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver Kruse3FC91B0B0C7497C23013
Verified2017-10-02kkmrkkblmbrbk3FC91B0B0C7497C23013
Verified2017-10-12kkmrkkblmbrbk3FC91B0B0C7497C23532913
Verified2020-04-17Oliver Kruse65ABB05356029C693761153
Verified2024-07-01kkmrkkblmbrbk65ABB05356029C693494253
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M10663/170609/186790115032128288354393552607/91986863600990794189571432555555473 : 65ABB05356029C69
PRP: Verified
PRP without proof (small exponent)
2022-11-09-Anonymous-NF-PM1
B1=100000000000, B2=120443211520241610
2020-04-17Oliver KruseC-PRP
M10663/170609/186790115032128288354393552607/91986863600990794189571432555555473 : 65ABB05356029C69
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10663/170609/186790115032128288354393552607/91986863600990794189571432555555473 : 3FC91B0B0C7497C2
PRP: Verified
PRP without proof (not generated)
2017-10-02kkmrkkblmbrbkC-PRP
M10663/170609/186790115032128288354393552607/91986863600990794189571432555555473 : 3FC91B0B0C7497C2
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10663/170609/186790115032128288354393552607/91986863600990794189571432555555473 : 3FC91B0B0C7497C2
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10663/170609/186790115032128288354393552607/91986863600990794189571432555555473 : 3FC91B0B0C7497C2
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2010-05-13James HintzF-ECM
Factor: 91986863600990794189571432555555473
2008-10-16-Anonymous-F-ECM
Factor: 186790115032128288354393552607