What are the common multiples of 18 and 16?

Common multiples of 18 and 16 are numbers that both 18 and 16 can be divided into evenly with no remainder.

To find the common multiples of 18 and 16, we compare the list of multiples of 18 with the list of multiples of 16 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 16, we multiply 16 by 1, 16 by 2, and so on like this:

16 x 1 = 16
16 x 2 = 32
16 x 3 = 48
16 x 4 = 64
...

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 16?"

144, 288, 432, 576, etc.

Since 144 is the first number they have in common, 144 is the least common multiple of 18 and 16.

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 144 (the least common multiple), so you can continue the green list above with more common multiples of 18 and 16 by simply adding 144 to the last number on the list.

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What are the common multiples of 18 and 17?
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