The GCF is 1.
The GCF is 1.
The GCF of 1 and 91 is 1. The GCF of 91 and 91 is 91.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 3.
The GCF is 29.
The GCF is 1.
The GCF is 3.
The GCF is of 27 and 87 is 3.The GCF is 3.
The GCF is 3.3The GCF is 3.
The GCF is 3.