Big Ideas Math: Modeling Real Life, Grade 6
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Big Ideas Math: Modeling Real Life, Grade 6 View details
3. Prime Factorization
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Exercise 1 Page 16

How can you write 18 as the product of two natural numbers?

1 and 18, 2 and 9, 3 and 6

Practice makes perfect
The factors of a number are any natural numbers we can multiply to get that number. Let's write 18 as the product of two numbers in as many ways as possible.
18 Written as a Product of Two Numbers Factors
1 * 18=18 1 and 18
2 * 9=18 2 and 9
3 * 6=18 3 and 6

We found that 18 has 3 pairs of factors.