The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF of 28 and 63 is 7. This leaves you with 4 and 9 respectively. As there are no more common factors between 4 and 9 aside from 1, the GCF remains 7.
The GCF is 45.
Factors of 28: 1, 2, 4, 7, 14, 28.Factors of 35: 1, 5, 7, 35.Factors of 45: 1, 3, 5, 9, 15, 45.GCF (28, 35, 45) = 1
The GCF of 45 and 50 is 5.The GCF is 5.
The GCF is 28.
The GCF is 45.