Use the form below to do your conversion.
Solution
Step1
Log216475=Log(6475) ÷ Log(21)
Log(6475)= 3.8112397727533
Log(21)=1.3222192947339
Log216475=3.8112397727533 ÷ 1.3222192947339
Ans=2.8824566302523
Step2
Alternatively, the logarithm can be calculated like this.