Use the form below to do your conversion.
Solution
Step1
Log139661=Log(9661) ÷ Log(13)
Log(9661)= 3.9850220821095
Log(13)=1.1139433523068
Log139661=3.9850220821095 ÷ 1.1139433523068
Ans=3.5774010176164
Step2
Alternatively, the logarithm can be calculated like this.