Use the form below to do your conversion.
Solution
Step1
Log217115=Log(7115) ÷ Log(21)
Log(7115)= 3.8521749044203
Log(21)=1.3222192947339
Log217115=3.8521749044203 ÷ 1.3222192947339
Ans=2.9134160420761
Step2
Alternatively, the logarithm can be calculated like this.