Use the form below to do your conversion.
Solution
Step1
Log213091=Log(3091) ÷ Log(21)
Log(3091)= 3.4900990050633
Log(21)=1.3222192947339
Log213091=3.4900990050633 ÷ 1.3222192947339
Ans=2.639576520297
Step2
Alternatively, the logarithm can be calculated like this.