Use the form below to do your conversion.
Solution
Step1
Log129905=Log(9905) ÷ Log(12)
Log(9905)= 3.9958544798746
Log(12)=1.0791812460476
Log129905=3.9958544798746 ÷ 1.0791812460476
Ans=3.7026722754022
Step2
Alternatively, the logarithm can be calculated like this.