Use the form below to do your conversion.
Solution
Step1
Log214315=Log(4315) ÷ Log(21)
Log(4315)= 3.6349808000512
Log(21)=1.3222192947339
Log214315=3.6349808000512 ÷ 1.3222192947339
Ans=2.7491512297003
Step2
Alternatively, the logarithm can be calculated like this.