Use the form below to do your conversion.
Solution
Step1
Log21145=Log(145) ÷ Log(21)
Log(145)= 2.161368002235
Log(21)=1.3222192947339
Log21145=2.161368002235 ÷ 1.3222192947339
Ans=1.6346516881452
Step2
Alternatively, the logarithm can be calculated like this.