Use the form below to do your conversion.
Solution
Step1
Log216407=Log(6407) ÷ Log(21)
Log(6407)= 3.8066547239919
Log(21)=1.3222192947339
Log216407=3.8066547239919 ÷ 1.3222192947339
Ans=2.8789889386374
Step2
Alternatively, the logarithm can be calculated like this.