Use the form below to do your conversion.
Solution
Step1
Log139709=Log(9709) ÷ Log(13)
Log(9709)= 3.9871745010875
Log(13)=1.1139433523068
Log139709=3.9871745010875 ÷ 1.1139433523068
Ans=3.579333269354
Step2
Alternatively, the logarithm can be calculated like this.