What are the common multiples of 80 and 98?

Common multiples of 80 and 98 are numbers that both 80 and 98 can be divided into evenly with no remainder.

To find the common multiples of 80 and 98, we compare the list of multiples of 80 with the list of multiples of 98 to see what they have in common.

To create a list of multiples of 80, we multiply 80 by 1, 80 by 2, and so on like this:

80 x 1 = 80
80 x 2 = 160
80 x 3 = 240
80 x 4 = 320
...

Similarly, to create a list of multiples of 98, we multiply 98 by 1, 98 by 2, and so on like this:

98 x 1 = 98
98 x 2 = 196
98 x 3 = 294
98 x 4 = 392
...

When we compare the two lists to see what they have in common, we get the answer to "What are the common multiples of 80 and 98?"

3920, 7840, 11760, 15680, etc.

Since 3920 is the first number they have in common, 3920 is the least common multiple of 80 and 98.

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 3920 (the least common multiple), so you can continue the green list above with more common multiples of 80 and 98 by simply adding 3920 to the last number on the list.

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What are the common multiples of 80 and 99?
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