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The GCF is 7.
GCF of 49 and 84 is 7.
The GCF is 1.
The GCF is 7.It is: 7
The GCF is 7.7 is the GCF of 42, 49 and 84.
The GCF is 7.The GCF is 7.
The GCF of 21, 49, and 84 is 7.
The GCF is: 7.
GCF = 7