Use the form below to do your conversion.
Solution
Step1
Log138423=Log(8423) ÷ Log(13)
Log(8423)= 3.9254668006915
Log(13)=1.1139433523068
Log138423=3.9254668006915 ÷ 1.1139433523068
Ans=3.5239375436483
Step2
Alternatively, the logarithm can be calculated like this.