Use the form below to do your conversion.
Solution
Step1
Log12139=Log(139) ÷ Log(12)
Log(139)= 2.1430148002541
Log(12)=1.0791812460476
Log12139=2.1430148002541 ÷ 1.0791812460476
Ans=1.9857783927423
Step2
Alternatively, the logarithm can be calculated like this.