It is 1 because 23 is a Prime number
It is 1 = one
Its GCF can only be 1 because 23 is a prime number and its LCM is 23*12 = 276
The GCF is 1.
The GCF is 23.
The GCF is 23.
The GCF is 23.
The GCF is 23.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 23.
You need at least two numbers to find a GCF.