There are no such numbers.
-56
60 and 3
71
76
4x15=60 5x12=60
There are no such numbers.
83
12 and 5
60
-56
-56
-56
If you've written that correctly, there aren't two whole numbers that satisfy your conditions. -30 and 2 multiply to -60, but they add to -28.
59, 60
60 and 3
60