The GCF is 73.
The GCF is 1.
The GCF is 3.
The GCF is 1.
73 is a prime number. It's only factors are 1 and 73. The only common factor of 73 and 40 is 1.
The GCF is 1.
The GCF is 73.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 1.