Use the form below to do your conversion.
Solution
Step1
Log139791=Log(9791) ÷ Log(13)
Log(9791)= 3.9908270505675
Log(13)=1.1139433523068
Log139791=3.9908270505675 ÷ 1.1139433523068
Ans=3.5826122058209
Step2
Alternatively, the logarithm can be calculated like this.