Use the form below to do your conversion.
Solution
Step1
Log25421=Log(421) ÷ Log(25)
Log(421)= 2.6242820958357
Log(25)=1.397940008672
Log25421=2.6242820958357 ÷ 1.397940008672
Ans=1.8772494381419
Step2
Alternatively, the logarithm can be calculated like this.