Use the form below to do your conversion.
Solution
Step1
Log912991=Log(12991) ÷ Log(9)
Log(12991)= 4.1136425827717
Log(9)=0.95424250943932
Log912991=4.1136425827717 ÷ 0.95424250943932
Ans=4.3108984792438
Step2
Alternatively, the logarithm can be calculated like this.