Use the form below to do your conversion.
Solution
Step1
Log21191=Log(191) ÷ Log(21)
Log(191)= 2.2810333672477
Log(21)=1.3222192947339
Log21191=2.2810333672477 ÷ 1.3222192947339
Ans=1.7251551057624
Step2
Alternatively, the logarithm can be calculated like this.