Use the form below to do your conversion.
Solution
Step1
Log217561=Log(7561) ÷ Log(21)
Log(7561)= 3.8785792380622
Log(21)=1.3222192947339
Log217561=3.8785792380622 ÷ 1.3222192947339
Ans=2.9333857503893
Step2
Alternatively, the logarithm can be calculated like this.