To factor the expression \( 8w + 16 \) using the greatest common factor (GCF), we first find the GCF of the coefficients of the terms.
The coefficients are 8 and 16. The GCF of 8 and 16 is 8.
Now we can factor out the GCF from the expression:
\[ 8w + 16 = 8(w + 2) \]
So the correct response is:
8(w + 2).