What are the common multiples of 72 and 77?

Common multiples of 72 and 77 are numbers that both 72 and 77 can be divided into evenly with no remainder.

To find the common multiples of 72 and 77, we compare the list of multiples of 72 with the list of multiples of 77 to see what they have in common.

To create a list of multiples of 72, we multiply 72 by 1, 72 by 2, and so on like this:

72 x 1 = 72
72 x 2 = 144
72 x 3 = 216
72 x 4 = 288
...

Similarly, to create a list of multiples of 77, we multiply 77 by 1, 77 by 2, and so on like this:

77 x 1 = 77
77 x 2 = 154
77 x 3 = 231
77 x 4 = 308
...

When we compare the two lists to see what they have in common, we get the answer to "What are the common multiples of 72 and 77?"

5544, 11088, 16632, 22176, etc.

Since 5544 is the first number they have in common, 5544 is the least common multiple of 72 and 77.

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 5544 (the least common multiple), so you can continue the green list above with more common multiples of 72 and 77 by simply adding 5544 to the last number on the list.

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