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21 April, 11:13

2. Find the least common multiple of 3 and 21.

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Answers (2)
  1. 21 April, 13:45
    0
    7

    Step-by-step explanation:

    The LCM or least common muitiple is the least common number between the two numbers when you muitliply them.

    3*7=21

    Therefore, 7 is the answer.
  2. 21 April, 14:40
    0
    21

    Step-by-step explanation:

    Using the GCF for the LCM formula:

    The GCF of 21 and 3 is 3.

    LCM (3,21) = (3 * 21) / 3

    LCM (3,21) = 63 / 3

    LCM (3,21) = 21
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