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2 July, 07:59

What is the LCM of 21 and 105

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Answers (2)
  1. 2 July, 11:14
    0
    The answer to your question is 105

    Step-by-step explanation:

    To get the least common factor dividing both numbers by the prime numbers starting from 2.

    But these numbers are not multiples of 2, try 3

    21 105 3

    These numbers are not multiples of 3 let's try 5

    7 35 5

    These numbers are multiples of 7 7 7 7

    1 1

    The LCM is the product of the prime numbers = 3 x 5 x 7 = 105
  2. 2 July, 11:27
    0
    the LCM of 21 and 105 is 105.
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