Use the form below to do your conversion.
Solution
Step1
Log218605=Log(8605) ÷ Log(21)
Log(8605)= 3.9347508746636
Log(21)=1.3222192947339
Log218605=3.9347508746636 ÷ 1.3222192947339
Ans=2.9758685948199
Step2
Alternatively, the logarithm can be calculated like this.