Use the form below to do your conversion.
Solution
Step1
Log25641=Log(641) ÷ Log(25)
Log(641)= 2.8068580295188
Log(25)=1.397940008672
Log25641=2.8068580295188 ÷ 1.397940008672
Ans=2.0078529923363
Step2
Alternatively, the logarithm can be calculated like this.