Use the form below to do your conversion.
Solution
Step1
Log212165=Log(2165) ÷ Log(21)
Log(2165)= 3.3354579006894
Log(21)=1.3222192947339
Log212165=3.3354579006894 ÷ 1.3222192947339
Ans=2.5226208042597
Step2
Alternatively, the logarithm can be calculated like this.