-144
There are infinitely many pairs. The simplest is 1 and 140.
-171
They are: 4*5*7 = 140
How about: 4*5*7 = 140
280
-144
There are infinitely many pairs. The simplest is 1 and 140.
-171
2840
They are: 4*5*7 = 140
How about: 4*5*7 = 140
There are five ways to get to 140: 70 and 2, 14 and 10, 28 and 5, 35 and 4, and 20 and 7.
2 x 70 4 x 35 7 x 20 10 x 14 and 1 x 140
140
When you multiply two numbers, you get the product
(70,2)(35,4)(28,5)(20,7)(14,10)