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Anonymous
The GCF is 21.
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GCF(63, 84, 126) = 21
The LCM of 63 and 84 is 252.
The GCF is 6.
Lcm: 126 gcf: 7
45 = 3 * 3 * 5 63 = 3 * 3 * 7 126 = 2 * 3 * 3 * 7 Gcf = 3 * 3 = 9 45/9 = 5 63 / 9 = 7 126 / 9 = 14