How about: 5*9 = 45 as one example
2.5 x 2 and 1 x 5
As many as desired. An infinite number is possible.
1 x 41, 41 x 1
24x1, 12x2, 8x3, 6x4
1 x 85, 5 x 17, 17 x 5, 85 x 1.
22x111x21x222x11
1x82x4
Infinite
Infinitely many.
70*1.1 is one example.
3 are the ones i counted
How about: 5*9 = 45 as one example
Any, and every, multiplication problem must be "less than equal to or greater than one".
You'll need another number to perform multiplication. Until then, your 17 won't change.
2.5 x 2 and 1 x 5
As many as desired. An infinite number is possible.