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Q: What is the next common multiples of 9 and 21?

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LCM(9, 21) = 63 so the numbers are 63, 63*2 and 63*3.

18, 36, 54, 72, 90

180

Each common multiple of 9 and 10 occurs exactly once (in the list of common multiples), so there is no common multiple that occurs the most. All common multiples of 9 and 10 are the multiples of their least common multiple which is 90.

Multiples of 9 include 9, 18, 27 and so on. For them to be common, they need to be compared to another set of multiples.Itself and any other multiples of 9

Related questions

The common multiples of 9 and 21 are 63, 126, 189 and so on.

Any pair of numbers has an infinite set of common multiples. The lowest common multiple of 9 and 21 is 63 and the others are multiples of this, e.g. 63, 126, 189, 252, 315, ...

126

The LCM is 63.

The LCM is 63

63.

63

315

63, 126, 189

There is an infinite number of common multiples for 9 and 21. A common multiple of any two or more numbers is any number into which each of two or more numbers can be divided evenly (zero remainder).

If that's 9, 14 and 21, the first three common multiples are 126, 252 and 378.

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