280
The two numbers that multiply to -140 and add up to -8 are 7 and -20. When you multiply them, 7 × -20 equals -140, and when you add them, 7 + (-20) equals -8.
To find four numbers that multiply to 140, one possible combination is 1, 2, 5, and 14, since (1 \times 2 \times 5 \times 14 = 140). Another combination could be 2, 5, 2, and 7, as (2 \times 5 \times 2 \times 7 = 140). There are various combinations possible, but these are a couple of examples.
1 and 140
2840
2 x 2 x 5 x 7 = 140
140
70*2
They are: 4*5*7 = 140
How about: 4*5*7 = 140
10 times 14 or 14 times 10 = 14020 times 7 or 7 times 20 = 14028 times 5 or 5 times 28 =140.70 times 2 or 2 times 70 =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
There are infinitely many pairs. The simplest is 1 and 140.
(70,2)(35,4)(28,5)(20,7)(14,10)
-144
To find four numbers that multiply to 140, one possible combination is 1, 2, 5, and 14, since (1 \times 2 \times 5 \times 14 = 140). Another combination could be 2, 5, 2, and 7, as (2 \times 5 \times 2 \times 7 = 140). There are various combinations possible, but these are a couple of examples.
1 x 140, 2 x 70, 4 x 35, 5 x 28, 7 x 20, 14 x 10