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

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MnStatusDetails
229123Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
17267142031334346814492270.52009-04-24 21:00:40
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000162 / 1566
Estimated T-Level: 30.5
TF below 2^96 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Unknown7D960
Verified (Factored)John SweeneyB37DA451575FFD960
Verified (Factored)Mike GachB37DA451575FFD960
Verified (Factored)Eivind TrielB37DA451575FFD9685400
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseAACCCED53ED655F11013
Verified2017-10-12kkmrkkblmbrbkAACCCED53ED655F1120468213
Verified2020-04-17Oliver Kruse8F9C475394602714121796253
Verified2024-02-03Wentao Huang8F9C47539460271412005053
History
DateUserTypeResult
2024-02-03slaurCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M229123/1726714203133434681449 : 8F9C475394602714
PRP proof power = 5
PRP: Verified
Proof certified good
2022-03-20Oliver KruseNF-PM1
B1=30000000, B2=10070832992220
2022-03-07LordJuliusNF
no factor from 2^57 to 2^58
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2021-06-23Oliver KruseNF-PM1
B1=30000000, B2=3000000000
2020-04-17Oliver KruseC-PRP
M229123/1726714203133434681449 : 8F9C475394602714
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M229123/1726714203133434681449 : AACCCED53ED655F1
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M229123/1726714203133434681449 : AACCCED53ED655F1
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M229123/1726714203133434681449 : AACCCED53ED655F1
PRP without proof (not generated)
2009-04-24Sturle SundeF-ECM
Factor: 1726714203133434681449
2009-01-28Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-31Sturle SundeNF
no factor from 2^58 to 2^59