Use the form below to do your conversion.
Solution
Step1
Log218681=Log(8681) ÷ Log(21)
Log(8681)= 3.9385697562211
Log(21)=1.3222192947339
Log218681=3.9385697562211 ÷ 1.3222192947339
Ans=2.978756830964
Step2
Alternatively, the logarithm can be calculated like this.