Use the form below to do your conversion.
Solution
Step1
Log216445=Log(6445) ÷ Log(21)
Log(6445)= 3.8092229216894
Log(21)=1.3222192947339
Log216445=3.8092229216894 ÷ 1.3222192947339
Ans=2.880931277331
Step2
Alternatively, the logarithm can be calculated like this.