will mark as brainliest

Answer:
[tex]\sqrt{17}[/tex]
Step-by-step explanation:
Knowing there is only one irrational number here the easiest way to find it is to first look for prime numbers inside of the square root. From this point we have found the irrational number, [tex]\sqrt{17}[/tex], as prime numbers don't have rational numbers that could be squared to make them.