Answer:
A perfect square can always be expressed as a product of pairs of equal factors
if we resolve 15x 375(which equals 5625)
225x25 = 9x25x25 = 3x3x5x5x5x5 = 3x5x5x3x5x5 or 3 to the power of 2 x 5 to the power of 4 which can also equal to 75 squared
which means that 75 is the number whose square is 5265