The GCF is the product of the GCF of the coefficients and the GCF of each variable.
Coefficients: 24, 32, 8: 24=2³×3; 32=2⁵; 8=2³. Lowest power of 2 is the GCF: 2³=8.
x: Lowest power of x, GCF is x.
y: Lowest power of y, GCF is y.
Product is 8xy,so GCF is 8xy.