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It depends on the number that it is a perfect square of!
The same number is multiplied with itself to form a perfect square i.e. a perfect square has real and repeated equal numbers as factors.
If you mean 'prime' factors, then an odd number of them CAN'T produce a perfect square. Consider 3 factors ... A, B, and C. If their product were a perfect square, then AxB=C, which can't be true if C is a prime number. For non-prime factors, an odd number of them may or may not be a perfect square: Three factors = not a square: 2 x 3 x 5 = 30. Three factors = a square: 2 x 3 x 6 = 36.
the only perfect square factor of 90 is 9
A perfect square