Use the form below to do your conversion.
Solution
Step1
Log189991=Log(9991) ÷ Log(18)
Log(9991)= 3.9996089589714
Log(18)=1.2552725051033
Log189991=3.9996089589714 ÷ 1.2552725051033
Ans=3.1862475619525
Step2
Alternatively, the logarithm can be calculated like this.