Find whole-number factor pairs
The idea
A factor pair is two whole numbers whose product is the given number.
Step by step
- A factor pair is two whole numbers whose product is the given number.
- Divide the number by the known factor to find its partner.
- Multiply the pair to check; a factor divides the number with no remainder.
Example
3 is one factor in a factor pair for 18. What is its partner?
Answer
6
3 × 6 = 18. The factor pair is (3, 6).
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List every factor pair for 24. Explain how the list also gives every positive factor of 24.
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