Use the form below to do your conversion.
Solution
Step1
Log7991=Log(991) ÷ Log(7)
Log(991)= 2.9960736544853
Log(7)=0.84509804001426
Log7991=2.9960736544853 ÷ 0.84509804001426
Ans=3.5452379636743
Step2
Alternatively, the logarithm can be calculated like this.