Use the form below to do your conversion.
Solution
Step1
Log21425=Log(425) ÷ Log(21)
Log(425)= 2.6283889300503
Log(21)=1.3222192947339
Log21425=2.6283889300503 ÷ 1.3222192947339
Ans=1.9878615752459
Step2
Alternatively, the logarithm can be calculated like this.