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40 = 1 × 2 × 4 × 5.
The prime factors are 2 x 2 x 2 x 5.
80
2x2=4
400
64
4*2=8
1 x 40, 2 x 20, 4 x 10, 5 x 8
12x2x2x2
The two numbers that when multiplied equal 56 are: 1 and 56 2 and 28 4 and 14 7 and 8
74
11 4
4 × 9 × 19