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

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MnStatusDetails
1094791Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
52549969825.6old
9523805867211239.82008-07-16 09:31:16
37453302228031097661171672581.62017-04-28 17:38:28
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-09-01Kriesel87E8C1A217ECBFA0013
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-30alpertron2397E611252225AF3013
Verified2017-10-16Oliver Kruse2397E611252225AF362548013
History
DateUserTypeResult
2025-09-02LookASCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-01KrieselC-PRP
87E8C1A217ECBFA0
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2024-10-07timc995NF-PM1
B1=2000000, B2=63130867800
2017-10-16Oliver KruseC-PRP
M1094791/52549969/952380586721/3745330222803109766117167 : 2397E611252225AF
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M1094791/3745330222803109766117167/52549969/952380586721 : 2397E611252225AF
PRP: Verified
PRP without proof (not generated)
2017-09-29Oliver KruseC-PRP
M1094791/52549969/952380586721/3745330222803109766117167 : 2397E611252225AF
PRP without proof (not generated)
2017-04-28TJAOIF-ECM
Factor: 3745330222803109766117167 / (ECM curve 93, B1=50000, B2=5000000)
2008-07-16J FeitsmaF
Factor: 952380586721