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What is the least common multiple of $4$ and $5$ ? $\newline$ _____

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Least common multiple

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Q. What is the least common multiple of

4

and

5

?

\newline

_____

List Multiples of $4$ : List the multiples of $4$ . $\newline$ Multiples of $4$ : $4, 8, 12, 16, 20, 24, 28, 32, 36, 40\ldots$
List Multiples of $5$ : List the multiples of $5$ . $\newline$ Multiples of $5$ : $5, 10, 15, 20, 25, 30, 35, 40, 45, 50\ldots$
Find Smallest Common Multiple: Find the smallest common multiple. $\newline$ Common multiples from the lists: $20, 40\ldots$ $\newline$ The smallest one is $20$ .

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