Use the form below to do your conversion.
Solution
Step1
Log21359=Log(359) ÷ Log(21)
Log(359)= 2.5550944485783
Log(21)=1.3222192947339
Log21359=2.5550944485783 ÷ 1.3222192947339
Ans=1.9324286514004
Step2
Alternatively, the logarithm can be calculated like this.