Best Answer

The LCM of 6 and 21 is 42.

Multiples of 6 are 6, 12, 18, 24, 30, 36, 42, and so on.

Multiples of 21 are 21, 42, and so on.

So the LCM is 42.

the answer is and always will be 42 unless u get it wrong so the correct answer lol XP

42

It is: 42

Q: What is the least common multiple of 6 and 21?

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The LCM of 6, 9, and 21 is 126

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Related questions

The least common multiple of 6 , 21 = 42

The least common multiple of the numbers 21 and 6 is 42.

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The Least Common Multiple (LCM) of (4,6,21) is 84.

6 is less than 21. Out of that set, 6 is the least number. The least common multiple of 6 and 21 is 42.

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42

210

The LCM is: 42

273

84