Q: What are the common multiples of 21 and 40?

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The multiples of 24 are 24, 48, 72 and so on. The multiples of 40 are 40, 80, 120 and so on. The common multiples of 24 and 40 are 120, 240, 360 and so on.

The common multiples of 7, 14, and 21 are the infinite set of multiples of their least common multiple, which is 42. So the common multiplesof 7, 14, and 21 are 42, 84, 126, 168, and so on.Any multiple of 42.

The Least Common Multiple (LCM) of (3,7) is 21.

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

The answer is 40 because 20x2=40 and 5x8=40.

Related questions

Multiples of 40 include 40, 80, 120 and so on. For them to be common, they need to be compared to another set of multiples.

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

This cannot be determined because the common multiples of any two or more numbers are infinite.

there are infinite amount of common multiples.

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

Two common multiples of 21 and 15 are 105 and 315.

The common multiples of 3 and 21 are 21, 42, 63 and so on.

There is no upper limit to common multiples. LCM of 32 & 40 is 160...

40 and all its multiples...

Multiply 21 and 11 to get a common multiple. Since 21 and 11 have no common factors, that also happens to be the least common multiple.All other common multiples are multiples of this least common multiple.

There is an infinite number of common multiples for 40 and 50. A common multiple of any two numbers is any number into which each of two or more numbers can be divided evenly (zero remainder).

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, ...