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42, 84, 126, 168, 210

The least of these is 42.

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2 x 7 = 14

3 x 7 = 21

2 x 3 x 7 = 42, the LCM

Q: What are the first five multiples of 21 and 14 and What is the LCM?

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7, 14, 21, 28, 35

Both 2 and 14 are multiples of 14. It isn't possible to have a multiple smaller than the largest number. The LCM is 14.

The LCM of 14 and 16 is 112. Multiples of 14 include 14,28,42,56,70,84,98,112 Multiples of 16 include 16,32,48,64,80,96,112

The first 10 multiples of 5 are: 5, 10, 15, 20, 25, 30, 35, 40, 45, and 50.The first 10 multiples of 7 are: 7, 14, 21, 28, 35, 42, 49, 56, 63, and 70.

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

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The first five multiples of 14 are: 14, 28, 42, 56, 70.

lcm(2, 7) = 14 → first 3 common multiples are: 14, 28, 42; lcm(2, 8) = 8 → first 3 common multiples are: 8, 16, 24; lcm(7, 8) = 56 → first 3 common multiples are: 56, 112, 168; lcm(2, 7, 8) = 56 → first 3 common multiples are: 56, 112, 168.

14, 28, 42, 56, 70

The multiples of 7 are 7, 14, 21, 28, 35, 42, etc.The multiples of 14 are 14, 28, 42, etc.The multiples of 21 are 21, 42, etc.The least common multiple (LCM) of 7, 14, and 21 is 42

They meet first at their least common multiple (LCM).

7, 14, 21, 28, 35.

7, 14, 21, 28, 35

14, 28, 42, 56, 70

7, 14, 21, 28, 35

7, 14, 21, 28 and 35.

7, 14, 21, 28, 35

7, 14, 21, 28, 35