Question

What times what equals 160

Answer 1

If you don't mind fractions and decimals, then there are
an infinite number of pairs that multiply to result in  160 .

If you want to stick to only whole numbers, then these are
the possibilities:

1 x 160
2 x 80
4 x 40
5 x 32
8 x 20
10 x 16 .

Also, the same list with both numbers negative.