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Home > CC1 > Chapter 8 > Lesson 8.2.1 > Problem 8-77

8-77.

The first four multiples of are , , , and .  Homework Help ✎

  1. What are the first six multiples of ?

    To find the first six multiples of , you simply multiply by the numbers through separately and create a list of the products you find similar to the list written above.

    The first six multiples of are , and .

  2. What are the first six multiples of ?

    The first six multiples of are , and .

  3. What is the least common multiple of and ?

    The Least Common Multiple of two or more integers is the lowest positive integer that is divisible by both (or all ) of the integers. For example, the multiples of and are shown below in the table.  is the Least Common Multiple because it is the smallest positive integer divisible by both and . Use this idea to find the least common multiple of and .

    3

    6

    9

    12

    15

    18

    5

    10

    15

    20

    25

    30

  4. What is the greatest common factor of and ?

    The Greatest Common Factor of two or more integers is the greatest positive integer that is a factor of both (or all) of the integers. For example, the factors of are , , , , and and the factors of are , , , , , and , so the Greatest Common Factor of and is .

    The factors of are: , and . The factors of are: and . Can you find the greatest common factor now?