Headline Story
Factoring and Prime Numbers, #5
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Introduction
Read the Headline Story to the students. Encourage them to think of creative ways to name solutions.
Headline Story
A number is less than 20 and can be written as a product of 4 whole numbers, each greater than 1. What is the number?
Possible student responses
- 16
- 2 × 2 × 2 × 2 = 16 so maybe the number is 16.
- 2 × 2 × 2 × 3 is more than 20, so the number must be 16.
- 2 is a prime number.
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