Use the form below to do your conversion.
Solution
Step1
Log28139=Log(139) ÷ Log(28)
Log(139)= 2.1430148002541
Log(28)=1.4471580313422
Log28139=2.1430148002541 ÷ 1.4471580313422
Ans=1.4808436631254
Step2
Alternatively, the logarithm can be calculated like this.