Use the form below to do your conversion.
Solution
Step1
Log215425=Log(5425) ÷ Log(21)
Log(5425)= 3.7343997425206
Log(21)=1.3222192947339
Log215425=3.7343997425206 ÷ 1.3222192947339
Ans=2.8243421930037
Step2
Alternatively, the logarithm can be calculated like this.