Use the form below to do your conversion.
Solution
Step1
Log47139=Log(7139) ÷ Log(4)
Log(7139)= 3.8536373819586
Log(4)=0.60205999132796
Log47139=3.8536373819586 ÷ 0.60205999132796
Ans=6.4007531433182
Step2
Alternatively, the logarithm can be calculated like this.