143
-30
43
123
21 and 7
17
1 x 121, 11 x 11
The simplest answer for two numbers is 1 and 121. The most popular would be 11x11 however.
The two numbers are -1 and -2
121
Add 200 to it because 121 plus 200 = 321
8
-5 and -7
There are an infinite number of pairs that can be multiplied and get 121.If you only use positive whole numbers, then there are only two answers:[ 1 times 121 ] and [ 11 times 11 ].
575
-45
112 + 32 = 121 + 9 = 130
21