Use the form below to do your conversion.
Solution
Step1
Log218513=Log(8513) ÷ Log(21)
Log(8513)= 3.9300826333924
Log(21)=1.3222192947339
Log218513=3.9300826333924 ÷ 1.3222192947339
Ans=2.9723379843608
Step2
Alternatively, the logarithm can be calculated like this.