Use the form below to do your conversion.
Solution
Step1
Log213509=Log(3509) ÷ Log(21)
Log(3509)= 3.5451833682154
Log(21)=1.3222192947339
Log213509=3.5451833682154 ÷ 1.3222192947339
Ans=2.6812370552563
Step2
Alternatively, the logarithm can be calculated like this.