0
Anonymous
-1 x 63
1 x (-63)
-3 x 21
3 x (-21)
-7 x 9
7 x (-9)
Wiki User
1x9 3x3
host cell
346
-20
-79
12x12
there are in infinite amount
24, 48, 72 and so on.
1x100 2x50 4x25 5x20 10x10
One possible answer is 1.
17
-291