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Anonymous
The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, and 40.The prime factors of 40 are: 2 and 5.The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, and 42.The prime factors of 42 are: 2, 3, and 7.
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40+2 = 42
40% of 105 = 42
The composite factors of 42 are: 6, 14, 21, 42.
40/42 = 20/21
24, 30, 40, 42, 54, 56, 66, 70, 78 and 88.