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15 & 20 have an infinite number of Common Multiples; the first three are 60, 120 and 180.

Q: What are three common multiples of 15 and 20?

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Three numbers.

20 pinkgal333:20, 40, 60 are all common multiples.

The common multiples of 5 and 10 are: 10, 20, 30,40, .......... the least common multiple is 10

20

20, 40, 60, 80 and so on.

Related questions

10 and 15 15 and 20 20 and 25

60, 120 and 180

The common multiples of 9, 15, and 20 are an infinite set of multiples of their least common multiple, which is 180. so the common multiples of 9, 15, and 20 are 180, 360, 540, 720, 900, 1080, 1260, 1440, 1620, 1800, and so on.

60 and all its multiples

The multiples of 20 are 20, 40, 60, 80, 100, 120... The multiples of 30 are 30, 60, 90, 120, 150... The multiples of 15 are 15, 30, 45, 60, 75, 90, 105, 120, 135... The common multiples of 20, 30, and 15 are 60, 120, 180, 240...

LCD= 60

Ans: 15, 30 and 45 Prime factorization of 3 and 15 3: 3 15: 3 x 5 15, 30 and 45. Hi My names Bob

60 and 8,220

The LCM is 60

What are the first three common multiples of four and five

10, 20, 30 The common multiples of 5 and 10 are multiples of their lowest common multiple. The lcm of 5 and 10, is 10. Thus the first three common multiples are 10, 20, 30.

They are both multiples of 5