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you would have to make a factor tree for 8, 14, and 21. 8 equals 2*2*2. 14 equals 7*2 and 21 equals 7*3. Then you have to see what is the lowest number that they have in common. 8,14,21 do not have a number in commone so there isn't a common multiple.

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The least common multiple of 8 and 21 is 168.

Since 21 is a multiple of 7, it is automatically the LCM.

The lowest common multiple of 8 and 21 is 168.

LCM(7, 21) = 21.

168

It is: 21

Q: What is the least common multiple of 8 14 21?

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The Least Common Multiple (LCM) for 28 14 21 is 84.

The least common multiple of the numbers 14, 35 and 21 is 210.

210

210

42

Related questions

The Least Common Multiple (LCM) for 14 21 24 is 168.

The Least Common Multiple (LCM) for 14 21 32 is 672.

The Least Common Multiple (LCM) for 28 14 21 is 84.

The least common multiple of 7, 14, 21 and 36 is: 252

The Least Common Multiple (LCM) for 28 35 21 14 is 420.

The least common multiple of the numbers 14, 35 and 21 is 210.

The least common multiple of the numbers 21, 14 and 7 is 42.

It is: 42

The least common multiple of 14 and 21 is 42.14, 28, 42, 56 ...21, 42, 63, 84, ...

The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.The least common multiple of 14, 21, and 28 is 84.

42

It is: 378