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The lowest common multiple (LCM) is: 70
The Least Common Multiple (LCM) for 7 9 is 63.
The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.The least common multiple of 7, 9, and 13 is 819.
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28