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Home > CC1 > Chapter 5 > Lesson 5.3.3 > Problem 5-94

5-94.

The first four multiples of 7 are 7, 14, 21, and 28. Use this example to help you as you answer the questions below. Homework Help ✎

  1. What are the first six multiples of 9?

    The first multiple of 9 is 9(1) = 9.
    The second multiple of 9 is 9(2) = 18.
    The third multiple of 9 is 9(3) = ?

  2. What are the first six multiples of 12?

    Follow the hint in part (a), replacing 9 with 12.

  3. What is the least common multiple of both 9 and 12?

    This is the first number that appears in both of your lists from parts (a) and (b).

    36
    9(4) = 36
    12(3) = 36

  4. What is the greatest common factor of both 9 and 12?

  • Remember that something is a factor of 9 if 9 is a multiple of that number. Try making lists of factors for both 9 and 12.