The GCF is 77.
The GCF is 33.
The GCF is 21.
The GCF of 242, 231 is 11.
The GCF of 60 and 231 is 3
The GCF of 180 and 231 is 3.
The GCF is 40.
The GCF is 40.
GCF of 154 and 231 = 77 -Red Mist
The GCF is: 21
The GCF is 21.
Since 20 is a factor of 320, it is automatically the GCF.