1, 5, 7, 35, composite
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All numbers have factors. Some factors are prime numbers, some are composite numbers. A factor that is a composite number is a composite factor.
All composite numbers have more than two factors whereas prime numbers have only two factors
The composite factors of 84 are: 4, 6, 12, 14, 21, 28, 42, 84.
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,and 97 are all prime numbers. The rest are composite
composite factors of 63: 9, 21, and 63factors of 63: 1, 3, 7, 9, 21 and 63