State True or False.
If the product of two whole numbers is 1, then at least one of them is one.

Answer

To determine whether the statement "If the product of two whole numbers is 1, then at least one of them is one" is true or false, we can analyze the situation step by step.

### Step 1: Understand Whole Numbers
Whole numbers are defined as the set of non-negative integers, which includes 0, 1, 2, 3, and so on.

**Hint:** Remember that whole numbers start from 0 and include all positive integers.

### Step 2: Analyze the Product of Whole Numbers
When we multiply two whole numbers, we obtain a product. We need to check under what conditions this product can equal 1.

**Hint:** Consider the multiplication table of whole numbers to see what products you can get.

### Step 3: Consider Examples
1. **Example 1:**
- Let’s take the whole numbers 1 and 1.
- The product is: \(1 \times 1 = 1\).
- Here, at least one of the numbers is 1.

2. **Example 2:**
- Now, let’s take another pair, 0 and 1.
- The product is: \(0 \times 1 = 0\).
- Here, the product is not 1, so this does not apply.

3. **Example 3:**
- Let’s take the whole numbers 2 and 3.
- The product is: \(2 \times 3 = 6\).
- Again, the product is not 1.

**Hint:** Check if there are any pairs of whole numbers that can give a product of 1 without one of them being 1.

### Step 4: Conclusion
From the examples above, the only way to achieve a product of 1 using whole numbers is when both numbers are 1. If we have two whole numbers and their product is 1, it must be that at least one of them is 1.

Therefore, the statement is **True**.

**Final Answer:** True