Use the form below to do your conversion.
Solution
Step1
Log74991=Log(4991) ÷ Log(7)
Log(4991)= 3.6981875698661
Log(7)=0.84509804001426
Log74991=3.6981875698661 ÷ 0.84509804001426
Ans=4.3760456121798
Step2
Alternatively, the logarithm can be calculated like this.