Use the form below to do your conversion.
Solution
Step1
Log4991=Log(991) ÷ Log(4)
Log(991)= 2.9960736544853
Log(4)=0.60205999132796
Log4991=2.9960736544853 ÷ 0.60205999132796
Ans=4.9763706235932
Step2
Alternatively, the logarithm can be calculated like this.