Use the form below to do your conversion.
Solution
Step1
Log1310991=Log(10991) ÷ Log(13)
Log(10991)= 4.041037207867
Log(13)=1.1139433523068
Log1310991=4.041037207867 ÷ 1.1139433523068
Ans=3.6276864523663
Step2
Alternatively, the logarithm can be calculated like this.