Use the form below to do your conversion.
Solution
Step1
Log218987=Log(8987) ÷ Log(21)
Log(8987)= 3.9536147416906
Log(21)=1.3222192947339
Log218987=3.9536147416906 ÷ 1.3222192947339
Ans=2.9901354165961
Step2
Alternatively, the logarithm can be calculated like this.