Use the form below to do your conversion.
Solution
Step1
Log213847=Log(3847) ÷ Log(21)
Log(3847)= 3.5851221863068
Log(21)=1.3222192947339
Log213847=3.5851221863068 ÷ 1.3222192947339
Ans=2.7114429509428
Step2
Alternatively, the logarithm can be calculated like this.