Use the form below to do your conversion.
Solution
Step1
Log2115997=Log(15997) ÷ Log(21)
Log(15997)= 4.2040385448055
Log(21)=1.3222192947339
Log2115997=4.2040385448055 ÷ 1.3222192947339
Ans=3.1795319895491
Step2
Alternatively, the logarithm can be calculated like this.