The GCF is 21.
The GCF of 42 and 35 is 7.factors of 42: 2,6,7factors of 35: 5,7
The GCF is 21.
The GCF for 42 35 is 7.
The GCF is 7.
The GCF is 7.
The GCF is 7.
The GCF is 21.
The GCF of 35 and 63 is 7.The GCF is 7.The GCF is: 77
The GCF is: 3
The GCF is 21.
The GCF is 21.