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All multiples of 72 are greater than 21. If you're looking for factors of 72, use 9 and 12 or 18 and 3

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Q: What multiples of 72 can be added to get 21?
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What are the least common multiples of 72 and 21?

The least common multiple of the numbers 72 and 21 is 504.


How many multiples of 3 are between 62 and 215?

20*3 = 60 < 62 and 215 < 216 = 72*3 So there are 72 - 21 = 51 multiples.


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There are an infinite number of multiples. Multiples are simply numbers that are evenly divided by 72. You can continue to multiply 72 by numbers, and they will all be multiples of 72. 72, 144, 216, 288, 360.....etc. This can continue on forever, therefore, there are infinite multiples.


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Apart from 1, all of the other factors of 72 are multiples of prime factors.


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What are all the common multiples of 8 and 9 that are less than 100 and how?

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