Use the form below to do your conversion.
Solution
Step1
Log138581=Log(8581) ÷ Log(13)
Log(8581)= 3.9335379019717
Log(13)=1.1139433523068
Log138581=3.9335379019717 ÷ 1.1139433523068
Ans=3.5311830658407
Step2
Alternatively, the logarithm can be calculated like this.