Use the form below to do your conversion.
Solution
Step1
Log21217=Log(217) ÷ Log(21)
Log(217)= 2.3364597338485
Log(21)=1.3222192947339
Log21217=2.3364597338485 ÷ 1.3222192947339
Ans=1.7670742993648
Step2
Alternatively, the logarithm can be calculated like this.