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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
10691Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
21383514.4old
102000692811133.22008-08-26 19:58:32
113452036731133.42008-08-26 19:58:32
11282281347431781771960.02008-08-29 02:24:26
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000001283 / 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 Kruse9CC488989318FF4B4013
Verified2017-10-02kkmrkkblmbrbk9CC488989318FF4B4013
Verified2017-10-12kkmrkkblmbrbk9CC488989318FF4B4773713
Verified2020-04-17Oliver Kruse623806AF605E61E74391453
Verified (Factored)2022-05-12Jorge Coveiro623806AF605E61E71353553
Verified2024-07-01kkmrkkblmbrbk623806AF605E61E74881553
History
DateUserTypeResult
2024-07-01kkmrkkblmbrbkC-PRP
M10691/10200069281/1128228134743178177/11345203673/21383 : 623806AF605E61E7
PRP: Verified
PRP without proof (small exponent)
2022-12-17-Anonymous-NF-PM1
B1=100000000000, B2=120443211520241610
2022-05-12Jorge CoveiroC-PRP
M10691/21383 : 623806AF605E61E7
PRP: Verified
PRP without proof (small exponent)
2020-04-17Oliver KruseC-PRP
M10691/21383/10200069281/11345203673/1128228134743178177 : 623806AF605E61E7
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M10691/21383/10200069281/11345203673/1128228134743178177 : 9CC488989318FF4B
PRP: Verified
PRP without proof (not generated)
2017-10-02kkmrkkblmbrbkC-PRP
M10691/21383/10200069281/11345203673/1128228134743178177 : 9CC488989318FF4B
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M10691/21383/10200069281/11345203673/1128228134743178177 : 9CC488989318FF4B
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=100000000, B2=10000000000, E=12
2008-08-29-Anonymous-F-ECM
Factor: 1128228134743178177
2008-08-26-Anonymous-F
Factor: 11345203673
2008-08-26-Anonymous-F
Factor: 10200069281