If the product of two whole numbers is zero, can we say that one or both of them will be zero? Justify through examples.

Step 1: To justify

(1) If the product of two whole numbers is zero, then one or both of them will be zero.

Step 2: Justification 

If the product of $2$ whole numbers is zero, then one of them is definitely zero. For example, $0\times 2=0$ and $17\times 0=0.$

Now, If the product of $2$ whole numbers is zero, then both of them may be zero. For example, $0\times 0=0.$

However, $2\times 3=6$. Since the numbers to be multiplied are not equal to zero, therefore, the result of the product will also be non-zero.