Marin Mersenne 2^P-1
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MnStatusDetails
347899Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
404326778334977005721239921032995.02010-02-17 03:43:38
ECM
DigitsB1Curves
2550000280 / 280
30250000526 / 640
Estimated T-Level: 29.1
TF below 2^92 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski2C990
Verified (Factored)Unknown2C990
Verified (Factored)Guillermo Ballester ValorCA6F23F3F4C0AC990
Verified (Factored)Eivind TrielCA6F23F3F4C0AC99167818
Verified (Factored)2002-02-03Dennis PopeCA6F23F3F4C0AC99248031
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-23Oliver KruseC9219804CF4855271013
Verified2017-10-13Oliver KruseC9219804CF485527110990413
Verified2017-12-13ATHC9219804CF485527133702213
Verified2020-04-18Oliver Kruse8BE2FB64AACF791A121188153
Verified2024-09-14kkmrkkblmbrbk8BE2FB64AACF791A19157253
History
DateUserTypeResult
2024-09-26yuriy_5-1NF-PM1
B1=12000002, B2=2124117455460
2024-09-14Sage RussellCERT
PRP Certification
Proof certified good
2024-09-14kkmrkkblmbrbkC-PRP
M347899/40432677833497700572123992103 : 8BE2FB64AACF791A
PRP proof power = 5
PRP: Verified
Proof certified good
2024-02-16Denial140NF-PM1
B1=1000000, B2=8866035360
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-18Oliver KruseC-PRP
M347899/40432677833497700572123992103 : 8BE2FB64AACF791A
PRP: Verified
PRP without proof (small exponent)
2017-12-13ATHC-PRP
M347899/40432677833497700572123992103 : C9219804CF485527
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M347899/40432677833497700572123992103 : C9219804CF485527
PRP: Verified
PRP without proof (small exponent)
2017-09-23Oliver KruseC-PRP
M347899/40432677833497700572123992103 : C9219804CF485527
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M347899/40432677833497700572123992103 : C9219804CF485527
PRP without proof (not generated)
2010-02-17Sturle SundeF-ECM
Factor: 40432677833497700572123992103
2009-01-27Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-31Sturle SundeNF
no factor from 2^58 to 2^59