gcf of 9, 27,54?

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  • garyp
    Lv 6
    1 decade ago
    Favorite Answer

    The factors of 9 are 3 * 3

    Of 27, 3 * 3 * 3

    Of 54, 3 * 3 * 3 * 2

    Now look at the lists of factors and find the greatest number of factors that are common to 9, 27, and 54. You can see that 3 * 3 appears in all three places. The greatest common factor is thus 9.

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  • Anonymous
    1 decade ago

    9

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  • ...
    Lv 4
    1 decade ago

    9

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  • 1 decade ago

    3|9 3|27 3|54

    |__ |__ |___

    3 3|9 3|18

    |___ |____

    3 3|6

    |___

    2

    9=3x3

    27=3x3x3

    54=3x3x3x2

    gcf of 9,27,54 is 3x3=9(since 3 is common to all three numbers)

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  • Anonymous
    1 decade ago

    the answer is 9. just practice your times tables

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  • nine or 9

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  • Anonymous
    1 decade ago

    Yep

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