Use the form below to do your conversion.
Solution
Step1
Log139871=Log(9871) ÷ Log(13)
Log(9871)= 3.994361151908
Log(13)=1.1139433523068
Log139871=3.994361151908 ÷ 1.1139433523068
Ans=3.5857848100051
Step2
Alternatively, the logarithm can be calculated like this.