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28 = 2 x 2 x 7
36 = 2 x 2 x 3 x 3
44 = 2 x 2 x 11
GCF = 2 x 2 = 4
The GCF is 4.
GCF(4412, 28) = 4.
The GCF is 2.
The greatest common factor (gcf) of 28 and 36 is 9.
GCF(28, 36) = 4