Question:

GCF for 12, 16 and 30 is ?

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GCF for 12, 16 and 30 is ?

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  1. 12 = 2 * 2 * 3

    16 = 2*2*2*2

    30 = 2*3*5

    Since only one two appears in all three lists, the GCF is 2


  2. 12 = 2*2*3

    16 = 2*2*2*2

    30 = 2*3*5

    GCF = 2

    The only factor common to all three numbers is a single 2.


  3. 2

  4. 12,16,30 are even numbers

    so 2 must be GFC for them

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