Use the form below to do your conversion.
Solution
Step1
Log913991=Log(13991) ÷ Log(9)
Log(13991)= 4.1458487565905
Log(9)=0.95424250943932
Log913991=4.1458487565905 ÷ 0.95424250943932
Ans=4.3446489918233
Step2
Alternatively, the logarithm can be calculated like this.