Use the form below to do your conversion.
Solution
Step1
Log813991=Log(13991) ÷ Log(8)
Log(13991)= 4.1458487565905
Log(8)=0.90308998699194
Log813991=4.1458487565905 ÷ 0.90308998699194
Ans=4.5907371538907
Step2
Alternatively, the logarithm can be calculated like this.