Use the form below to do your conversion.
Solution
Step1
Log218905=Log(8905) ÷ Log(21)
Log(8905)= 3.9496339237993
Log(21)=1.3222192947339
Log218905=3.9496339237993 ÷ 1.3222192947339
Ans=2.9871247073233
Step2
Alternatively, the logarithm can be calculated like this.