Use the form below to do your conversion.
Solution
Step1
Log21281=Log(281) ÷ Log(21)
Log(281)= 2.4487063199051
Log(21)=1.3222192947339
Log21281=2.4487063199051 ÷ 1.3222192947339
Ans=1.8519668633317
Step2
Alternatively, the logarithm can be calculated like this.