2 and 8
64
There aren't any whole numbers that satisfy these conditions. The only numbers that multiply to 23 are 23 and 1.
4 + 5 = 9 x 16 = 144
16 and 15
47
The two numbers are -17.797959 and 1.797959 (approx).
29
14 and 2
2 and 8
-137
64
-22
2770
288
76
736