What are the common multiples of 12 and 55?

Common multiples of 12 and 55 are numbers that both 12 and 55 can be divided into evenly with no remainder.

To find the common multiples of 12 and 55, we compare the list of multiples of 12 with the list of multiples of 55 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 55, we multiply 55 by 1, 55 by 2, and so on like this:

55 x 1 = 55
55 x 2 = 110
55 x 3 = 165
55 x 4 = 220
...

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 55?"

660, 1320, 1980, 2640, etc.

Since 660 is the first number they have in common, 660 is the least common multiple of 12 and 55.

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 660 (the least common multiple), so you can continue the green list above with more common multiples of 12 and 55 by simply adding 660 to the last number on the list.

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What are the common multiples of 12 and 56?
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