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

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MnStatusDetails
2143483Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
123464620811133.5old
2114674588491237.62008-07-14 20:20:46
252892363849286391754.52014-11-25 12:49:30
ECM
DigitsB1Curves
2550000280 / 280
30250000163 / 640
Estimated T-Level: 26.3
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-08Oliver Kruse4CB39358D16BCFED1013
Verified2017-10-17Oliver Kruse0F492031275171E5332354053
Verified2017-11-18kkmrkkblmbrbk0F492031275171E5350263753
History
DateUserTypeResult
2017-11-18kkmrkkblmbrbkC-PRP
M2143483/12346462081/211467458849/25289236384928639 : 0F492031275171E5
PRP: Verified
PRP without proof (not generated)
2017-10-17Oliver KruseC-PRP
M2143483/12346462081/211467458849/25289236384928639 : 0F492031275171E5
PRP: Verified
PRP without proof (not generated)
2017-10-08Oliver KruseC-PRP
M2143483/12346462081/211467458849/25289236384928639 : 4CB39358D16BCFED
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2014-11-25TJAOIF
Factor: 25289236384928639 / TF: 54-55
2008-07-14George WoltmanF-ECM
Factor: 211467458849