Use the form below to do your conversion.
Solution
Step1
Log219407=Log(9407) ÷ Log(21)
Log(9407)= 3.9734511440249
Log(21)=1.3222192947339
Log219407=3.9734511440249 ÷ 1.3222192947339
Ans=3.0051377709055
Step2
Alternatively, the logarithm can be calculated like this.