Use the form below to do your conversion.
Solution
Step1
Log217705=Log(7705) ÷ Log(21)
Log(7705)= 3.8867726430544
Log(21)=1.3222192947339
Log217705=3.8867726430544 ÷ 1.3222192947339
Ans=2.9395824569604
Step2
Alternatively, the logarithm can be calculated like this.