Use the form below to do your conversion.
Solution
Step1
Log139907=Log(9907) ÷ Log(13)
Log(9907)= 3.9959421629926
Log(13)=1.1139433523068
Log139907=3.9959421629926 ÷ 1.1139433523068
Ans=3.5872041021812
Step2
Alternatively, the logarithm can be calculated like this.