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:





MnDetails
8929
Composite, with 3 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 244
Factored
FactorDigitsBitsDate
196439617.6old
25553598720294491651.2old
111543096134124517779329657239284075137119.72018-05-11 03:07:08
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000008240 / 16550
Estimated T-Level: 47.5
TF below 2^153 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
No proof (small exponent)
2017-09-21Oliver Kruse04600D941A29E9132013
Factored
No proof (small exponent)
2017-10-12kkmrkkblmbrbk04600D941A29E9132734913
Verified
No proof (small exponent)
2018-05-12Hexaflexagon99E9608C4283652F3569453
Verified
No proof (small exponent)
2018-05-13Oliver Kruse99E9608C4283652F3338253
History
DateUserTypeResult
2025-04-25masserNF-PP1Start=120/29, B1=1000000000, B2=999000000000
2023-08-01JacobZNF-PM1B1=65000000000, B2=251099672798124150
2021-12-16ANONYMOUSNF-PM1B1=100000000
2018-05-13Oliver KruseC-PRPM8929/196439/2555359872029449/1115430961341245177793296572392840751 : 99E9608C4283652F
2018-05-12HexaflexagonC-PRPM8929/196439/2555359872029449/1115430961341245177793296572392840751 : 99E9608C4283652F
2018-05-11HexaflexagonF-ECMFactor: 1115430961341245177793296572392840751
2017-10-12kkmrkkblmbrbkC-PRPM8929/196439/2555359872029449 : 04600D941A29E913
2017-09-21Oliver KruseC-PRPM8929/196439/2555359872029449 : 04600D941A29E913
2017-09-21Oliver KruseC-PRPM8929/196439/2555359872029449 : 04600D941A29E913