Use the form below to do your conversion.
Solution
Step1
Log2115985=Log(15985) ÷ Log(21)
Log(15985)= 4.2037126406077
Log(21)=1.3222192947339
Log2115985=4.2037126406077 ÷ 1.3222192947339
Ans=3.1792855068369
Step2
Alternatively, the logarithm can be calculated like this.