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

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MnStatusDetails
2039603Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
49480768791032.2old
539906573494811445.62008-08-26 20:20:33
152793819325331390850472373.72024-02-19 12:51:29
ECM
DigitsB1Curves
2550000280 / 280
30250000112 / 640
Estimated T-Level: 25.9
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-06Oliver Kruse7F8FFCA791DCC9EC2013
Verified (Factored)2017-11-14ATH7F8FFCA791DCC9EC2176789813
Verified2024-02-19Naegi MakotoF00D70E37CB6AC60335087053
History
DateUserTypeResult
2024-02-19WeakForceBosonCERT
PRP Certification
Proof certified good
2024-02-19Naegi MakotoC-PRP
M2039603/4948076879/53990657349481/15279381932533139085047 : F00D70E37CB6AC60
PRP proof power = 7
PRP: Verified
Proof certified good
2024-02-19TJAOIF-ECM
Factor: 15279381932533139085047 / (ECM curve 20, B1=250000, B2=40000000, Sigma=3460363784580941)
2017-11-14ATHC-PRP
M2039603/4948076879/53990657349481 : 7F8FFCA791DCC9EC
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2039603/4948076879/53990657349481 : 7F8FFCA791DCC9EC
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-08-26-Anonymous-F
Factor: 53990657349481