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18 April, 10:31

Least common multiple of 7 and 21

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Answers (2)
  1. 18 April, 10:35
    0
    21

    Step-by-step explanation:

    Since 7 x 3 is 21

    And 21 x 1 is 21
  2. 18 April, 10:41
    0
    21

    Step-by-step explanation:

    To find the least common multiple of 7 and 21, we need to break each number down to its prime factors

    7 = 7

    21 = 7*3

    To find the least common multiple multiply each factor the greatest number of times it occurs in either number.

    The LCM = 7*3

    = 21
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