The greatest common factor of 42 and 78 is 6
Express each number in terms of its prime factors.
78 = 2 x 3 x 13
42 = 2 x 3 x 7
The common factors are 2 and 3 therefore the GCF = 2 x 3 = 6
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The GCF of 36, 42, and 78 is 6.
The greatest common factor of 42, 54, and 78 is 6. 54 = 2 x 3^3 42 = 2 x 3 x 7 78 = 2 x 3 x 13 So the highest common factor is 2 x 3 = 6
The greatest common factor of 78 and 546 is 78.
The greatest common factor of 78 and 120 is 6.
The greatest common factor of 78 , 41 = 1