The GCF is 7.
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GCF(14, 28, 21) = 7
GCF(14, 28, 42) = 14.
The GCF is 14.
The greatest common factor is the highest number that divides exactly into two or more numbers.14: 1, 2, 7, 1428: 1, 2, 4, 7, 14, 2863: 1, 3, 7, 9, 21, 63The GCF of 14, 28 and 63 is 7.The GCF is 7.
GCF of 28 42 and 56 is 14.The GCF is 14.(28 = 2 x 14, 42 = 3 x 14, 56 = 4 x 14)To find the GCF, factor the numbers and multiply their common prime factors:28 = 2 x 2 x 742 = 2 x 3 x 756 = 2 x 2 x 2 x 7Common factors are 2 x 7 = 14