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Which of the following pairs of numbers has the greatest common factor (GCF) of 1?

Practice Questions

1 question
Q1
Which of the following pairs of numbers has the greatest common factor (GCF) of 1?
  1. 8 and 12
  2. 15 and 28
  3. 9 and 27
  4. 14 and 21

Questions & Step-by-step Solutions

1 item
Q
Q: Which of the following pairs of numbers has the greatest common factor (GCF) of 1?
Solution: The GCF of 15 and 28 is 1, making them coprime, while the other pairs share common factors.
Steps: 0

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