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21 May, 11:11

What is the least common multiple of 15 and 20?

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  1. 21 May, 12:28
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    Answer: 60

    Step-by-step explanation:

    Find the prime factor of 15

    15 = 3 * 5

    Find the prime factor of 20

    20 = 4 * 5

    Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:

    4 * 3 * 5

    LCM = 60
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