17 and 7
11
-21
44
1 and 0
16
-78
85
1, 2 and 3
16
301 is a prime number. Therefore only two numbers multiplied together to give 301 is itself and 1.
13
The only integer solution to this question is 2 and 2 which give 4 when they are added together or multiplied together. If you do not limit yourself to integers, then any pair of numbers, x and x/(x-1) will fit the bill where x not = 1. Their sum and product are x^2 / (x-1).