Use the form below to do your conversion.
Solution
Step1
Log218711=Log(8711) ÷ Log(21)
Log(8711)= 3.9400680137394
Log(21)=1.3222192947339
Log218711=3.9400680137394 ÷ 1.3222192947339
Ans=2.979889969411
Step2
Alternatively, the logarithm can be calculated like this.