They are 16 and 9
They are: 36-1 = 35
5 and 4
They are 25 minus 16 = 9
289 - 256 = 33
7 squared and 3 squared. 49 - 9 = 40
the " difference ".
None of this works. There aren't two prime numbers that multiply to 75 and the only two that add to it are 73 and 2. There aren't two prime numbers whose difference is 19. Two numbers that satisfy those conditions are 47 and 28, but 28 isn't prime.
the difference
All you have to do is multiply the two numbers. That gives you 6,600 square feet.
The number is two
20
22 and 12