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Find the least common multiple of 9, 10, and 30.

  • math -

    The multiples are:

    9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108 . . .

    10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110 . . .

    30, 60, 90, 120, 150 . . .

    What is the smallest multiple of those three numbers?

  • math -

    i got 90

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