You need at least two numbers to find a GCF.
If that's 162 and 832, the GCF is 2.
If that's 16, 28 and 32, the GCF is 4.
The GCF is 6.
The GCF is 9.
The GCF is 4.
The GCF is 30.
50
The GCF is 27.
The GCF is: 1
The GCF is 1.
The GCF is 5.
The GCF is 2.
The GCF is 3.
The GCF of 125, 200 is 25.