Use the form below to do your conversion.
Solution
Step1
Log21667=Log(667) ÷ Log(21)
Log(667)= 2.8241258339165
Log(21)=1.3222192947339
Log21667=2.8241258339165 ÷ 1.3222192947339
Ans=2.1358982168573
Step2
Alternatively, the logarithm can be calculated like this.