Use the form below to do your conversion.
Solution
Step1
Log71981=Log(1981) ÷ Log(7)
Log(1981)= 3.2968844755385
Log(7)=0.84509804001426
Log71981=3.2968844755385 ÷ 0.84509804001426
Ans=3.9011858026353
Step2
Alternatively, the logarithm can be calculated like this.