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What is the least common multiple of $9$ and $7$ ? $\newline$ _____

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Least common multiple

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Q. What is the least common multiple of

9

and

7

?

\newline

_____

List Multiples of $9$ : List the multiples of $9$ . $\newline$ Start with $9$ and keep adding $9$ to find more multiples. $\newline$ Multiples of $9$ : $9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, \ldots$
List Multiples of $7$ : List the multiples of $7$ . $\newline$ Start with $7$ and keep adding $7$ to find more multiples. $\newline$ Multiples of $7$ : $7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105, 112, 119, 126, 133, 140, \ldots$
Identify Common Multiple: Identify the smallest common multiple. $\newline$ From the lists above, the first common multiple of $9$ and $7$ is $63$ .

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