Use the form below to do your conversion.
Solution
Step1
Log21517=Log(517) ÷ Log(21)
Log(517)= 2.7134905430939
Log(21)=1.3222192947339
Log21517=2.7134905430939 ÷ 1.3222192947339
Ans=2.052224282236
Step2
Alternatively, the logarithm can be calculated like this.