Use the form below to do your conversion.
Solution
Step1
Log129887=Log(9887) ÷ Log(12)
Log(9887)= 3.9950645341561
Log(12)=1.0791812460476
Log129887=3.9950645341561 ÷ 1.0791812460476
Ans=3.7019402892587
Step2
Alternatively, the logarithm can be calculated like this.