Use the form below to do your conversion.
Solution
Step1
Log217795=Log(7795) ÷ Log(21)
Log(7795)= 3.8918161195249
Log(21)=1.3222192947339
Log217795=3.8918161195249 ÷ 1.3222192947339
Ans=2.943396859375
Step2
Alternatively, the logarithm can be calculated like this.