Question

a perfect square can't have the digit​

Answer 1

Step-by-step explanation:

perfect square can never have digits 2,3,7 & 8 in the units place.

Hope this helps u.

Answer 2

Step-by-step explanation:

E.g. 81, 121, 441, 961 all are Perfect Square having unit digit 1 and tens digit is even. – If unit digit of a number is 2 then it can't be a perfect square. – If unit digit of a number is 3 then it can't be a perfect square. – If unit digit of a perfect square is 4 then ten's digit has to be Even.