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

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MnStatusDetails
2579333Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
4918072832805453254871612478.72024-04-15 19:53:35
31077255621953908239062232581.42010-05-16 08:09:56
ECM
DigitsB1Curves
255000054 / 280
Estimated T-Level: 21.0 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Gary Hanson2C4E18E81FE63A250
Verified (Factored)1999-06-15Mark Schweizer2C4E18E81FE63A251682689
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-15Oliver KruseB82BEA7884C85F351249436853
Verified (Factored)2017-12-02kkmrkkblmbrbkB82BEA7884C85F351140711253
Verified2024-04-15Anton TsvetkovB82BEA7884C85F35273877653
History
DateUserTypeResult
2024-04-15Chun sung sooCERT
PRP Certification
Proof certified good
2024-04-15Anton TsvetkovC-PRP
M2579333/3107725562195390823906223/491807283280545325487161 : B82BEA7884C85F35
PRP proof power = 7
PRP: Verified
Proof certified good
2024-04-15Anton TsvetkovF-ECM
Factor: 491807283280545325487161 / (ECM curve 35, B1=50000, B2=14967225, Edwards Sigma=3787081452986950)
2023-01-25USAFSSNF-PM1
B1=232000, B2=246845610
2022-03-11LordJuliusNF
no factor from 2^1 to 2^60
2017-12-02kkmrkkblmbrbkC-PRP
M2579333/3107725562195390823906223 : B82BEA7884C85F35
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-15Oliver KruseC-PRP
M2579333/3107725562195390823906223 : B82BEA7884C85F35
PRP: Verified (Factored)
PRP without proof (not generated)
2010-05-16James ClassenF-ECM
Factor: 3107725562195390823906223
2009-01-31Sturle SundeNF
no factor from 2^60 to 2^61