1 x 225, 3 x 75, 5 x 45, 9 x 25, 15 x 15
15 x 15 = 225
Two consecutive two digit numbers that when multiplied give the product of 812 are 28 and 29.
13.574813431681335 and 16.574813431681335 Also -13.574813431681335 and -16.574813431681335
16 and 15
59
-4 and -4
8 & 16
8 and 9
91 and 2
11 and -1 but there is an infinite number of numbers that work.
-3
9 and negative 24