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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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9y ago

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More answers

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

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7y ago
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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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10y ago
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15, 30 and 45

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12y ago
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15, 30, 45, 60, 75, 90

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12y ago
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105, 210, 315

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11y ago
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15, 30, 45

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Wiki User

9y ago
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Q: What are the first three common multiples of 15 and 20?
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