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Not all of them are. Consider 27.

6 and 9 share a lot of common multiples because they share a common factor.

Q: Why are multiples of 9 are multiples of 6?

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To find the LCM of a number in this case 6 and 9 you find all of their multiples that they share in this caseThe multiples of 6 are 2,3,6

No. For a start, 9 is itself a multiple of 9, but it is not a multiple of 6.In general, all multiples of a number "a" will also be multiples of number "b", only if "a" itself is also a multiple of "b". For example, all multiples of 12 are multiples of 4, since 12 is a multiple of 4.

Yes it is... Multiples of 3 & 6 are 3, 6, 9, 12, 15 & 18

18 and 36.

18 and multiples of 18.

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The multiples of 6 is 6,12,18,24,30,36,42,48,54,60,66,72,78,84,90.................. The multiples of 9 is 9,18,27,36,45,54,63,72,81,90,99,108,117,126,135...............

No; all multiples are not multiples of 6, for example 3×3 = 9 is not a multiple of 6. However as 6 = 2×3 all multiples of 6 are also multiples of 3.

the first 6 multiples of 9 are 9 , 18 , 27 , 36 , 45 , 54

The common multiples of 6 and 9 are the infinite set of multiples of their LCM, which is 18. So the common multiples of 6 and 9 are 18, 36, 54, 72, 90, 108, 126, 144, 162, 180, and so on.

The least common multiples of the number 6 and 9 is 3.

3 yes, 6 no.

Multiples of 90

To find the LCM of a number in this case 6 and 9 you find all of their multiples that they share in this caseThe multiples of 6 are 2,3,6

18 and all the multiples of 18.

it is 18. 18 is a multiple of all three numbers. multiples of 3: 3,6,9,12,15,18... multiples of 6: 6,12,18... multiples of 9: 9, 18...18

GCF = 3 LCM = 18 Factors of 9: 1, 3, 9 Factors of 6: 1, 2, 3, 6 Multiples of 9: 9, 18 Multiples of 6: 6, 12, 18

3, 6, 9