Use the form below to do your conversion.
Solution
Step1
Log213505=Log(3505) ÷ Log(21)
Log(3505)= 3.5446880223027
Log(21)=1.3222192947339
Log213505=3.5446880223027 ÷ 1.3222192947339
Ans=2.6808624230642
Step2
Alternatively, the logarithm can be calculated like this.