What are the common multiples of 18 and 11?

Common multiples of 18 and 11 are numbers that both 18 and 11 can be divided into evenly with no remainder.

To find the common multiples of 18 and 11, we compare the list of multiples of 18 with the list of multiples of 11 to see what they have in common.

To create a list of multiples of 18, we multiply 18 by 1, 18 by 2, and so on like this:

18 x 1 = 18
18 x 2 = 36
18 x 3 = 54
18 x 4 = 72
...

Similarly, to create a list of multiples of 11, we multiply 11 by 1, 11 by 2, and so on like this:

11 x 1 = 11
11 x 2 = 22
11 x 3 = 33
11 x 4 = 44
...

When we compare the two lists to see what they have in common, we get the answer to "What are the common multiples of 18 and 11?"

198, 396, 594, 792, etc.

Since 198 is the first number they have in common, 198 is the least common multiple of 18 and 11.

Note: Our lists are shortened because they go on forever, but can you see the pattern when you look at the answer in green above? The common multiples are in intervals of 198 (the least common multiple), so you can continue the green list above with more common multiples of 18 and 11 by simply adding 198 to the last number on the list.

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What are the common multiples of 18 and 12?
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