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The GCF is 3.
GCF(39, 21) = 3.
GCF(21, 39) = 3.
The GCF of 21, 27, and 39 is 3.
The GCF of 21, 39, and 96 is 3.
what is the greatest common factor of 21 27 and 39
3
The GCF is 39.
The GCF is 1.