Use the form below to do your conversion.
Solution
Step1
Log712991=Log(12991) ÷ Log(7)
Log(12991)= 4.1136425827717
Log(7)=0.84509804001426
Log712991=4.1136425827717 ÷ 0.84509804001426
Ans=4.8676513114411
Step2
Alternatively, the logarithm can be calculated like this.