91
The two numbers that multiply to 90 and add to 1 are 10 and -9. When multiplied, 10 * -9 equals -90, and when added, 10 + (-9) equals 1.
It is not possible to multiply two prime numbers and get 90. You can add 43 and 47.
-117
111
-9 and 10
-100
113
133
18 and -5
-117
-95
-117