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Q: Multiples of 21 and 49

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LCM of 21 & 49 is 147, so all multiples of 147 are common multiples of 21 & 49.

21, 28, 35, 42, 49

LCM(21, 49, 56) = 1176

It is 7!

1 and 7

1 and 7

1 and 7

They are: 21, 28, 35, 42 and 49

Common multiples include 1176, 2352, 3528 and so on.

7, 14, 21, 28, 35, 42, 49 are multiples of 7.

21, 28, 35, 42, 49

Any multiple of 1176

The first 10 multiples of 7 are: 7, 14, 21, 28, 35, 42, 49, 56, 63, and 70.

147, 294, 441 and so on.

147, 294, 441 and so on.

21, 35, 49, 63, 77.

1 and 7

6 multiples of 7 are: 14, 21, 28, 35, 42, and 49

1,764

14, 21, 28, 35, 42, 49, 56, 63 . . .

The multiples of seven between 20 and 60 are: 21, 28, 35, 42, 49, 56.

Multiples of seven include 7, 14, 21, 28, 35, 42, 49 and so on. For them to be common, they need to be compared to another set of multiples.

The multiples of 7 up to 100 are: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91 and 98

7, 14, 21, 28, 35, 42, 49.

21, 28, 35, 42, 49, 56.