Use the form below to do your conversion.
Solution
Step1
Log218543=Log(8543) ÷ Log(21)
Log(8543)= 3.931610406363
Log(21)=1.3222192947339
Log218543=3.931610406363 ÷ 1.3222192947339
Ans=2.9734934454683
Step2
Alternatively, the logarithm can be calculated like this.