yes
9 and 64 are square numbers but 8 is not.
64
Complex numbers.
82
The two square numbers that have a product of 64 are 8 and 8. A square number is a number that is the result of multiplying an integer by itself, so 8 x 8 = 64. Both 8 and 64 are perfect squares because they are the square of an integer.
64!
no.
They are: 49+64 = 113
64 is the only one.
16 and 64
36 and 64
64 , 81