The expression we have is:
Let's analyze the parts of this expression.
The first term of the expression is a constant term: 1.
1 is not a product of two factors, so this is not the answer.
The second term of the expression is: z/3.
This part of the expression is a division or quotient between z and 3. Thus, since it is a division and not a product, this is also not the answer we are looking for.
The third term of the expression is: 2w
In this case, the term 2w is a product between "2" and "w". Thus, 2w is a product of two factors. The parts of this product are 2 and which when multiplied result in 2w.
Answer: 2w