Use the form below to do your conversion.
Solution
Step1
Log213605=Log(3605) ÷ Log(21)
Log(3605)= 3.5569052690554
Log(21)=1.3222192947339
Log213605=3.5569052690554 ÷ 1.3222192947339
Ans=2.690102378041
Step2
Alternatively, the logarithm can be calculated like this.