Use the form below to do your conversion.
Solution
Step1
Log218425=Log(8425) ÷ Log(21)
Log(8425)= 3.9255699095434
Log(21)=1.3222192947339
Log218425=3.9255699095434 ÷ 1.3222192947339
Ans=2.9689249923806
Step2
Alternatively, the logarithm can be calculated like this.