Use the form below to do your conversion.
Solution
Step1
Log21875=Log(875) ÷ Log(21)
Log(875)= 2.9420080530223
Log(21)=1.3222192947339
Log21875=2.9420080530223 ÷ 1.3222192947339
Ans=2.2250530337438
Step2
Alternatively, the logarithm can be calculated like this.