Use the form below to do your conversion.
Solution
Step1
Log217807=Log(7807) ÷ Log(21)
Log(7807)= 3.8924841793647
Log(21)=1.3222192947339
Log217807=3.8924841793647 ÷ 1.3222192947339
Ans=2.9439021158347
Step2
Alternatively, the logarithm can be calculated like this.