Use the form below to do your conversion.
Solution
Step1
Log812991=Log(12991) ÷ Log(8)
Log(12991)= 4.1136425827717
Log(8)=0.90308998699194
Log812991=4.1136425827717 ÷ 0.90308998699194
Ans=4.5550749560115
Step2
Alternatively, the logarithm can be calculated like this.