The greatest common factor (GCF) of 121 and 231 is 11.
The greatest common factor of 231 and 154 is 77.
77
3
21
The greatest common factor of 105 and 231 is 21.
GCF(60, 231) = 3.
Since 231 is a factor of 693, it is automatically the GCF of the two.
The GCF is 3.
The GCF is 33.
The GCF is 3.
The GCF is: 77
33