Use the form below to do your conversion.
Solution
Step1
Log217999=Log(7999) ÷ Log(21)
Log(7999)= 3.9030356967885
Log(21)=1.3222192947339
Log217999=3.9030356967885 ÷ 1.3222192947339
Ans=2.9518822727314
Step2
Alternatively, the logarithm can be calculated like this.