Use the form below to do your conversion.
Solution
Step1
Log217691=Log(7691) ÷ Log(21)
Log(7691)= 3.885982811355
Log(21)=1.3222192947339
Log217691=3.885982811355 ÷ 1.3222192947339
Ans=2.9389851039324
Step2
Alternatively, the logarithm can be calculated like this.