What are the common multiples of 12 and 28?

Common multiples of 12 and 28 are numbers that both 12 and 28 can be divided into evenly with no remainder.

To find the common multiples of 12 and 28, we compare the list of multiples of 12 with the list of multiples of 28 to see what they have in common.

To create a list of multiples of 12, we multiply 12 by 1, 12 by 2, and so on like this:

12 x 1 = 12
12 x 2 = 24
12 x 3 = 36
12 x 4 = 48
...

Similarly, to create a list of multiples of 28, we multiply 28 by 1, 28 by 2, and so on like this:

28 x 1 = 28
28 x 2 = 56
28 x 3 = 84
28 x 4 = 112
...

When we compare the two lists to see what they have in common, we get the answer to "What are the common multiples of 12 and 28?"

84, 168, 252, 336, etc.

Since 84 is the first number they have in common, 84 is the least common multiple of 12 and 28.

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 84 (the least common multiple), so you can continue the green list above with more common multiples of 12 and 28 by simply adding 84 to the last number on the list.

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What are the common multiples of 12 and 29?
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