The common factors are 1, 2, 4, 7, 14, 28.
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These numbers: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84.
The least common multiple is the smallest number that is multiple of two or more numbers. 21: 21, 42, 63, 84 28: 28, 56, 84 The LCM of 21 and 28 is 84.
No. 84 is the smallest possible integer that has those numbers (and their factors) as factors.
Yes, but not evenly. 24 goes into 84 3.5 times.
The GCF of 28 and 84 is 28.