Use the form below to do your conversion.
Solution
Step1
Log21625=Log(625) ÷ Log(21)
Log(625)= 2.7958800173441
Log(21)=1.3222192947339
Log21625=2.7958800173441 ÷ 1.3222192947339
Ans=2.1145357872778
Step2
Alternatively, the logarithm can be calculated like this.