Use the form below to do your conversion.
Solution
Step1
Log213665=Log(3665) ÷ Log(21)
Log(3665)= 3.5640739789771
Log(21)=1.3222192947339
Log213665=3.5640739789771 ÷ 1.3222192947339
Ans=2.6955241034312
Step2
Alternatively, the logarithm can be calculated like this.