Use the form below to do your conversion.
Solution
Step1
Log217765=Log(7765) ÷ Log(21)
Log(7765)= 3.8901414600646
Log(21)=1.3222192947339
Log217765=3.8901414600646 ÷ 1.3222192947339
Ans=2.9421303073991
Step2
Alternatively, the logarithm can be calculated like this.