Use the form below to do your conversion.
Solution
Step1
Log216989=Log(6989) ÷ Log(21)
Log(6989)= 3.8444150404738
Log(21)=1.3222192947339
Log216989=3.8444150404738 ÷ 1.3222192947339
Ans=2.9075472244167
Step2
Alternatively, the logarithm can be calculated like this.