-21, 27
99
251
99
-3888
-117
-21, 27
391
38
99
135 = 3 x 45 or 5 x 27 or 9 x 15 None of these pairs add to 27.
29
251
The two equal numbers that have the sum of 54 are 27 and 27.
This is not possible, 27 is an odd number, 4 odd numbers will always equal an even number.
27
27 + 27