Question

321is is a perfect square number​

Answer 1

Answer:

11 is a perfect square number

Answer 2

Square number and perfect square mean the same thing. Anyway, for 321 to be a square number, 321 must be the product of an integer multiplied by itself. In other words, the square root of 321 must equal a whole number (integer). There is no integer that you can multiply by itself that will make 321.