Use the form below to do your conversion.
Solution
Step1
Log128399=Log(8399) ÷ Log(12)
Log(8399)= 3.9242275812601
Log(12)=1.0791812460476
Log128399=3.9242275812601 ÷ 1.0791812460476
Ans=3.6363007563671
Step2
Alternatively, the logarithm can be calculated like this.