The GCF is 5.
The GCF is 5.
The GCF is 21.
The GCF is 21.
The GCF is 7.
The GCF of 75 and 105 is 15. This leaves you with 5 and 7 respectively after division. You can do nothing further.
The GCF is 5.
The GCF of 55 and 105 is 5.
gcf of 55 and 121
The GCF is 1
The GCF is 11.
The GCF is 11.
The GCF is 5.