Use the form below to do your conversion.
Solution
Step1
Log81391=Log(1391) ÷ Log(8)
Log(1391)= 3.143327129992
Log(8)=0.90308998699194
Log81391=3.143327129992 ÷ 0.90308998699194
Ans=3.4806355681807
Step2
Alternatively, the logarithm can be calculated like this.