Use the form below to do your conversion.
Solution
Step1
Log217873=Log(7873) ÷ Log(21)
Log(7873)= 3.896140251442
Log(21)=1.3222192947339
Log217873=3.896140251442 ÷ 1.3222192947339
Ans=2.9466672184859
Step2
Alternatively, the logarithm can be calculated like this.