Use the form below to do your conversion.
Solution
Step1
Log129911=Log(9911) ÷ Log(12)
Log(9911)= 3.9961174761373
Log(12)=1.0791812460476
Log129911=3.9961174761373 ÷ 1.0791812460476
Ans=3.7029159752105
Step2
Alternatively, the logarithm can be calculated like this.