1.   What is the greatest common factor of 36 and 45?
    A. 36 B. 9
    C. 3 D. 45
    Hint

  2.   George wants to resurface the table below with ceramic tiles. What is the largest square tile that he can use without having to cut any tiles?
   
    A. 12 inches on each side B. 6 inches on each side
    C. 8 inches on each side D. 4 inches on each side
    Hint

  3.   What is the greatest common factor of 64 and 40?
    A. 2 B. 4
    C. 8 D. 20
    Hint

  4.   What is the greatest common factor of 39 and 18?
    A. 3 B. 13
    C. 9 D. 6
    Hint

  5.   What is the greatest common factor of 14p2q and 42p3q2?
    A. 14p2q B. 14pq
    C. 7pq D. 7p2q2
    Hint



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