Use the form below to do your conversion.
Solution
Step1
Log217687=Log(7687) ÷ Log(21)
Log(7687)= 3.8857568810693
Log(21)=1.3222192947339
Log217687=3.8857568810693 ÷ 1.3222192947339
Ans=2.9388142319094
Step2
Alternatively, the logarithm can be calculated like this.