Use the form below to do your conversion.
Solution
Step1
Log218561=Log(8561) ÷ Log(21)
Log(8561)= 3.9325244970505
Log(21)=1.3222192947339
Log218561=3.9325244970505 ÷ 1.3222192947339
Ans=2.9741847760903
Step2
Alternatively, the logarithm can be calculated like this.