Use the form below to do your conversion.
Solution
Step1
Log219145=Log(9145) ÷ Log(21)
Log(9145)= 3.9611837098124
Log(21)=1.3222192947339
Log219145=3.9611837098124 ÷ 1.3222192947339
Ans=2.9958598589424
Step2
Alternatively, the logarithm can be calculated like this.