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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

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8y ago
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7y ago

First three common multiples of 15 and 20 would be: 60,120,180

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10y ago

The first five multiples of 15 are 15, 30, 45, 60, 75. For them to be common, they need to be compared to another set of multiples.

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12y ago

15, 30 and 45

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12y ago

15, 30, 45, 60, 75, 90

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11y ago

105, 210, 315

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9y ago

15, 30, 45

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Q: What are the first three common multiples of 15 and 20?
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Related questions

What are the first three common multiples of 3 15?

Since 3 is a factor of 15, the first three common multiples of 3 and 15 are 15, 30, and 45.


What are three common multiples of 15 and 20?

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


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Multiply 35 by the first three counting numbers. That will give you the first three multiples. To be common, they need to be compared to another set of multiples. If you meant 3 and 5, the LCM is 15. Multiplying 15 by 2 and 3 will give you the others.


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