The GCF is 21.
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The GCF is 21.
3The GCF is: 2121.The GCF is 21.
The GCF is 21.
Oh honey, the Greatest Common Factor (GCF) for 42, 63, and 84 is 21. That's the largest number that divides evenly into all three of those numbers. So there you have it, simple as that!
The Greats Common Factor (GCF) is 21 63: 1,3,7,9,21,63 42: 1,2,3,67,14,21,42 21: 1,3,7,21 They all number 21 listed in there the Factors