The prime factors of 63 are 3*3*7 . The non-prime factors are 9 and 21.
The multiples of 63 are 63 * n where n is any number you feel like. The second part of this question is essentially meaningless.
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Factors: 1, 3, 7, 21 Multiples: 21, 42, 63, 84 and so on.
63, 126, 189, 252, 315.
It is always useful to know about factors and multiples.
The lowest common multiple of 7 and 9 is 63. The common multiples of 7 and 9 are therefore the infinite set of multiples of 63. Thus, the common multiples of 7 and 9 are 63, 126, 189, 252, 315, 378, 441, 504, 567, 630, 693, and so on.
the factors for 63 is 1 3 7 9 21 and 63