Use the form below to do your conversion.
Solution
Step1
Log219959=Log(9959) ÷ Log(21)
Log(9959)= 3.998215732371
Log(21)=1.3222192947339
Log219959=3.998215732371 ÷ 1.3222192947339
Ans=3.0238673329718
Step2
Alternatively, the logarithm can be calculated like this.