It 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
78 and 64's highest common factor is two.
The GCF is 3.
The factors of each number are:54 -> 1, 54, 2, 27, 3, 18, 6 & 938 -> 1, 38, 2 & 19The common factors are in bold, with the highest common factor being 2
13 is the highest common factor of 78, 156 and 169.
The GCF is 6.
The GCF is 1.
The HCF is: 13It is 13
Factors of 54: 1, 2, 3, 6, 9, 18, 27, 54.Factors of 60: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.Factors of 78: 1, 2, 3, 6, 13, 26, 39, 78.GCF (54, 60, 78) = 6
39 and 93's highest common factor is three.
Divide both by their highest common factor (HCF).
The GCF is 1.