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

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MnStatusDetails
1083059Composite, with 4 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
2166119721.0old
8664473723.02008-07-16 09:31:06
35675911351085589531961.62016-05-16 11:30:41
435533269438207734425512375.22017-03-24 13:19:28
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)2025-09-01Kriesel50EF097458D11E18013
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-05Oliver KruseED485338927554B74013
Verified2017-10-16Oliver KruseED485338927554B7447844513
Verified2018-01-02ATHED485338927554B7450887713
History
DateUserTypeResult
2025-09-01flavCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-01KrieselC-PRP
50EF097458D11E18
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2024-10-03timc995NF-PM1
B1=2000000, B2=65472156750
2018-01-02ATHC-PRP
M1083059/2166119/8664473/3567591135108558953/43553326943820773442551 : ED485338927554B7
PRP: Verified
PRP without proof (not generated)
2017-10-16Oliver KruseC-PRP
M1083059/2166119/8664473/3567591135108558953/43553326943820773442551 : ED485338927554B7
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1083059/2166119/8664473/3567591135108558953/43553326943820773442551 : ED485338927554B7
PRP: Verified
PRP without proof (not generated)
2017-09-28Oliver KruseC-PRP
M1083059/2166119/8664473/3567591135108558953/43553326943820773442551 : ED485338927554B7
PRP without proof (not generated)
2017-03-24TJAOIF-ECM
Factor: 43553326943820773442551 / (ECM curve 71, B1=50000, B2=5000000)
2016-05-16TJAOIF
Factor: 3567591135108558953 / TF: 61-62
2008-07-16J FeitsmaF
Factor: 8664473