Use the form below to do your conversion.
Solution
Step1
Log213085=Log(3085) ÷ Log(21)
Log(3085)= 3.4892551683693
Log(21)=1.3222192947339
Log213085=3.4892551683693 ÷ 1.3222192947339
Ans=2.638938323065
Step2
Alternatively, the logarithm can be calculated like this.