Use the form below to do your conversion.
Solution
Step1
Log217085=Log(7085) ÷ Log(21)
Log(7085)= 3.8503398545835
Log(21)=1.3222192947339
Log217085=3.8503398545835 ÷ 1.3222192947339
Ans=2.9120281861855
Step2
Alternatively, the logarithm can be calculated like this.