Use the form below to do your conversion.
Solution
Step1
Log1212991=Log(12991) ÷ Log(12)
Log(12991)= 4.1136425827717
Log(12)=1.0791812460476
Log1212991=4.1136425827717 ÷ 1.0791812460476
Ans=3.8118180776746
Step2
Alternatively, the logarithm can be calculated like this.