Use the form below to do your conversion.
Solution
Step1
Log215185=Log(5185) ÷ Log(21)
Log(5185)= 3.7147487607251
Log(21)=1.3222192947339
Log215185=3.7147487607251 ÷ 1.3222192947339
Ans=2.8094800730257
Step2
Alternatively, the logarithm can be calculated like this.