Factors of 21: 1, 3, 7, 21
Factors of 2: 1, 2
GCF (21, 2) =
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21 itself is the greatest common integral factor, since 21 X 2 = 42.
The prime factors are: 12 = 2 * 2 *3 21 = 3 *7 30 = 2 * 3 * 5 So the greatest common factor is 3.
The greatest common factor (GCF) is: 2
The greatest common factor of the numbers 2, 46 and 4 is 2.
greatest common factor of 120 and 182 is 2.