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thaheckster Group Title

How do I find the greatest common factor of something like 117 and 195? Whats the easiest way?

  • 3 years ago
  • 3 years ago

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  1. uzma Group Title
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    write down the prime factors of both GCF is the product of common factors

    • 3 years ago
  2. 3pwood Group Title
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    List the factors of both numbers 117: 1 3 9 13 39 117 195: 1 3 5 13 15 39 65 195 Biggest one looks to be: 39

    • 3 years ago
  3. thaheckster Group Title
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    numbers that go into 117?

    • 3 years ago
  4. uzma Group Title
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    117=3*3*13 195=5*3*13 GCF=3*13=39

    • 3 years ago
  5. thaheckster Group Title
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    thank you!

    • 3 years ago
  6. thaheckster Group Title
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    my brain is so slow at this lol

    • 3 years ago
  7. uzma Group Title
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    u got it? slow or fast doesnt matter much

    • 3 years ago
  8. thaheckster Group Title
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    so I list all the numbers that can go into 117?

    • 3 years ago
  9. uzma Group Title
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    once u learn the technique, with practice u would be fast in calculations too

    • 3 years ago
  10. thaheckster Group Title
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    I have been out of school for awhile

    • 3 years ago
  11. thaheckster Group Title
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    I hope one day I can grasp this as well as you!

    • 3 years ago
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