Use the form below to do your conversion.
Solution
Step1
Log21757=Log(757) ÷ Log(21)
Log(757)= 2.8790958795001
Log(21)=1.3222192947339
Log21757=2.8790958795001 ÷ 1.3222192947339
Ans=2.1774722929599
Step2
Alternatively, the logarithm can be calculated like this.