1 x 63, 3 x 21, 7 x 9, 9 x 7, 21 x 3, 63 x 1.
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X x 9 = 63 Algebraically rearrange X = 63/9 X = 7
There are 3 factor pairs of 63: 63 = 1 x 63 63 = 3 x 21 63 = 7 x 9
Sticking to integers: 7 x 9 = 63 3 x 21 = 63 1 x 63 = 63
63 = 32 x 7 I added:The factorization of 63 is 7, 3, and 3. 63 = 1 x 6363 = 3 x 2163 = 7 x 9OR3 x 3 x 7
63 x 7 = 441
1 x 63, 3 x 21, 7 x 9, 9 x 7, 21 x 3, 63 x 1
7 x 7 = 49 7 x 9 = 63
The prime factorization of 63 is 3 x 3 x 7 or 3^2*7 = 633 x 3 x 7 = 6363 = 3 x 3 x 7
The GCF is "7"... for 63 and 56 7 x 8 = 56 7 x 9 = 63
63 = 3 x 3 x 7 or 32 x 7