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Q: What are the multiples of 3 and 7?

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42 is the LCM of 3, 6 and 7. All multiples of 42 are multiples of 3, 6 and 7

The first 3 multiples of 7 are: 7, 14, and 21.

The first 3 multiples of 7 are: 7, 14, and 21.The first 3 multiples of 14 are: 14, 28, and 42.

The common multiples of 3 and 7 are 21, 42, 63 and so on.

Since all 3 are prime numbers LCM = 3 * 5 * 7 = 105 All multiples of 105 are multiples of 3, 5 and 7

The LCM of 3 and 7 is 21

The common multiples of 3 and 7 are:21,42,63,84,105,126,147,168,189,210,etc.

Odd multiples of 21.

The multiples of 2, 3 and 7 is 42.

The LCM of 3 and 7 is 21.

21,42 and 63 are the first three multiples

The first 3 multiples of 7 are: 7, 14, and 21.The first 3 multiples of 20 are: 20, 40, and 60.The first 3 multiples of 35 are: 35, 70, and 105.

7, 14, 21

There are infinitely many common multiples of 3, 5 and 7, each one 105 larger than the previous one. Or to put it another way: the common multiples of 3, 5 and 7 are the multiples of their lowest common multiple which is 105. ie their common multiples are all the multiples of 105, of which there is no end - there is an infinite number of multiples of 105 (or any other number [except zero]).

The LCM of 3 and 7 is 21.

The first 3 multiples are: 7, 14 and 21

2

The common multiples of an set of numbers are the multiples of their lowest common multiple. lcm(7, 8, 9) = 504 → the first 3 common multiples of 7, 8, 9 are 504, 1008, 1512.

21,15

3,6,9,12,15,18

231

21 and its multiples.

There are infinitely many common multiples of 7 and 3 and it is not possible to provide a list. They are numbers of the form 21*k where k is an integer.

21

2,56,84