Use the form below to do your conversion.
Solution
Step1
Log215101=Log(5101) ÷ Log(21)
Log(5101)= 3.7076553235312
Log(21)=1.3222192947339
Log215101=3.7076553235312 ÷ 1.3222192947339
Ans=2.8041152767154
Step2
Alternatively, the logarithm can be calculated like this.