Use the form below to do your conversion.
Solution
Step1
Log213475=Log(3475) ÷ Log(21)
Log(3475)= 3.5409548089261
Log(21)=1.3222192947339
Log213475=3.5409548089261 ÷ 1.3222192947339
Ans=2.6780389781248
Step2
Alternatively, the logarithm can be calculated like this.