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    Nightmarecha's Avatar
    Nightmarecha Posts: 1, Reputation: 1
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    #1

    Nov 8, 2017, 03:20 PM
    Item 9 Which pairs of numbers have a GCF of 5? 10 and 30 20 and 35
    Help me pleassssseee
    Alty's Avatar
    Alty Posts: 28,317, Reputation: 5972
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    #2

    Nov 8, 2017, 04:53 PM
    The greatest common factor (GCF or GCD or HCF) of a set of whole numbers is the largest positive integer that divides evenly into all numbers with zero remainder. For example, for the set of numbers 18, 30 and 42 the GCF = 6.

    Does that help you solve the problem?

    We are happy to help, but we won't do the work for you, you have to figure it out, that's the only way you'll learn. So tell us what you think, and why, and we're willing to lead you in the right direction, but we won't just give you the answer.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #3

    Nov 8, 2017, 08:09 PM
    Didn't you actually post the answer? What number divides into those you posted?
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