The GCF is 5.
The GCF is 21.
The GCF is 5.
The GCF is 21.
The GCF is 2.
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 greatest common factor (GCF) of 15, 25, and 40 is 5.
The GCF is 50.
The GCF is 56.
GCF of 175 and 56 is 7.
The GCF of 56 and 160 is 8. The LCM is 1120.