Use the form below to do your conversion.
Solution
Step1
Log214781=Log(4781) ÷ Log(21)
Log(4781)= 3.6795187436958
Log(21)=1.3222192947339
Log214781=3.6795187436958 ÷ 1.3222192947339
Ans=2.7828354633384
Step2
Alternatively, the logarithm can be calculated like this.