It is: 2
The GCF of 20, 42, and 78 is 2.
2 x 2 x 5 = 20 2 x 3 x 7 = 42 The GCF is 2.
The GCF of 1218 and 42 is 42. The GCF of 12, 18 and 42 is 6.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF of 20 and 42 is 2.Factors of 20: 1 2 4 5 10 20Factors of 42: 1 2 3 6 7 14 21 42The Greatest Common Factor (GCF) is: 2
The GCF is 21.
The greatest common factor of the numbers '420' and '2646' is '42'.
The GCF of 18 and 42 is 6. The GCF of 42 and 56 is 14.
The Greatest Common Factor of 14, 35, 42 is 7.