Use the form below to do your conversion.
Solution
Step1
Log139781=Log(9781) ÷ Log(13)
Log(9781)= 3.9903832589062
Log(13)=1.1139433523068
Log139781=3.9903832589062 ÷ 1.1139433523068
Ans=3.5822138088464
Step2
Alternatively, the logarithm can be calculated like this.