Use the form below to do your conversion.
Solution
Step1
Log2115971=Log(15971) ÷ Log(21)
Log(15971)= 4.2033321096817
Log(21)=1.3222192947339
Log2115971=4.2033321096817 ÷ 1.3222192947339
Ans=3.1789977097011
Step2
Alternatively, the logarithm can be calculated like this.