Use the form below to do your conversion.
Solution
Step1
Log217897=Log(7897) ÷ Log(21)
Log(7897)= 3.8974621380131
Log(21)=1.3222192947339
Log217897=3.8974621380131 ÷ 1.3222192947339
Ans=2.9476669668456
Step2
Alternatively, the logarithm can be calculated like this.