Use the form below to do your conversion.
Solution
Step1
Log19991=Log(991) ÷ Log(19)
Log(991)= 2.9960736544853
Log(19)=1.2787536009528
Log19991=2.9960736544853 ÷ 1.2787536009528
Ans=2.3429640020195
Step2
Alternatively, the logarithm can be calculated like this.