1.   Find the greatest common factor of 168 and 288.
    A. 36 B. 48
    C. 24 D. 2
    Hint

  2.   What is the greatest common factor of 45, 75, and 135?
    A. 15 B. 9
    C. 5 D. 25
    Hint

  3.   Find the greatest common factor of 64ab3c2 and 48a2b2c.
    A. 16ab2c B. 8a2b2c2
    C. 8ab3c D. 16abc
    Hint

  4.   Find the GCF of 16a3b2 and 12a2b.
    A. 4ab B. 2ab
    C. 4a2b D. 2a2b
    Hint

  5.   The area of a rectangle can be written by the expression 24x4+ 18x3. Find a set of possible dimensions for this rectangle.
    A. 6x3 by 4x + 3
    B. 24x3 by x + 18
    C. 3 by 8x3 + 6x3
    D. 2x4by 12 + 9x
    Hint



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