Use the form below to do your conversion.
Solution
Step1
Log217885=Log(7885) ÷ Log(21)
Log(7885)= 3.8968016976649
Log(21)=1.3222192947339
Log217885=3.8968016976649 ÷ 1.3222192947339
Ans=2.9471674730394
Step2
Alternatively, the logarithm can be calculated like this.