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

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MnStatusDetails
1743059Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1002893811224876046312166.42009-10-04 07:01:46
ECM
DigitsB1Curves
2550000280 / 280
30250000108 / 640
Estimated T-Level: 25.8 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Gordon Chinnick0710CF51F27224FA0
Verified (Factored)1999-02-14Robert Walker0710CF51F27224FA503606
PRP
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-09-02Kriesel7FFFB0485297784F013
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-30alpertron3CCB8A55209A72E51013
Verified2017-10-19Oliver Kruse3CCB8A55209A72E5195712513
History
DateUserTypeResult
2025-09-03Carlos PinhoCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-02KrieselC-PRP
7FFFB0485297784F
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2017-10-19Oliver KruseC-PRP
M1743059/100289381122487604631 : 3CCB8A55209A72E5
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M1743059/100289381122487604631 : 3CCB8A55209A72E5
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2009-10-04SubPrimeF-ECM
Factor: 100289381122487604631