3. Prime Factorization
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How can you write 15 as the product of two natural numbers?
1 and 15, 3 and 5
The factors of a number are any natural numbers we can multiply to get that number. Let's write 15 as the product of two numbers in as many ways as possible.
| 15 Written as a Product of Two Numbers | Factors |
|---|---|
| 1 * 15=15 | 1 and 15 |
| 3 * 5=15 | 3 and 5 |
We found that 15 has 2 pairs of factors.