You could use 1 x 280, 2 x 140, 4 x 70, 5 x 56, 7 x 40, 8 x 35, 10 x 28, and 14 x 20.
It is: 2 x 2 x 2 x 5 x 7
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70x4=280
40x=280 x=7
About 93.3 x 3 = 280
1 x 95, 5 x 19.
140 multiplied by 2 28 multiplied by 10 There are many more ways to multiply to get 280.