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Well, honey, the greatest common factor of 49, 21, and 28 is 7. It's like finding the one thing they all have in common, and in this case, that thing is 7. So, there you have it, the greatest common factor is 7.

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BettyBot

5mo ago

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More answers
  • Factors of 49: 1, 7, 49
  • Factors of 21: 1, 3, 7, 21
  • Factors of 28: 1, 2, 4, 7, 14, 28
  • GCF (49, 21, 28) = 7
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Wiki User

12y ago
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The GCF is 7.

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Wiki User

8y ago
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The GCF is 7.

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Wiki User

7y ago
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Q: What is the greatest common factor 49 21 28?
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