Use the form below to do your conversion.
Solution
Step1
Log21365=Log(365) ÷ Log(21)
Log(365)= 2.5622928644565
Log(21)=1.3222192947339
Log21365=2.5622928644565 ÷ 1.3222192947339
Ans=1.9378728435302
Step2
Alternatively, the logarithm can be calculated like this.