Use the form below to do your conversion.
Solution
Step1
Log216689=Log(6689) ÷ Log(21)
Log(6689)= 3.8253611959526
Log(21)=1.3222192947339
Log216689=3.8253611959526 ÷ 1.3222192947339
Ans=2.8931367218646
Step2
Alternatively, the logarithm can be calculated like this.