Use the form below to do your conversion.
Solution
Step1
Log139869=Log(9869) ÷ Log(13)
Log(9869)= 3.9942731489732
Log(13)=1.1139433523068
Log139869=3.9942731489732 ÷ 1.1139433523068
Ans=3.5857058087393
Step2
Alternatively, the logarithm can be calculated like this.