Use the form below to do your conversion.
Solution
Step1
Log218435=Log(8435) ÷ Log(21)
Log(8435)= 3.9260850869251
Log(21)=1.3222192947339
Log218435=3.9260850869251 ÷ 1.3222192947339
Ans=2.9693146231959
Step2
Alternatively, the logarithm can be calculated like this.