Use the form below to do your conversion.
Solution
Step1
Log217489=Log(7489) ÷ Log(21)
Log(7489)= 3.8744238305865
Log(21)=1.3222192947339
Log217489=3.8744238305865 ÷ 1.3222192947339
Ans=2.9302429982813
Step2
Alternatively, the logarithm can be calculated like this.