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HCF of 3 means the numbers both have a prime factor of 3. LCM of 12 means that, between the numbers, there are factors of 2, 2 and 3. But these 2s cannot be shared, else the HCF would be greater. Therefore, the numbers will need to be 3 and 2x2x3, or 12.

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13y ago

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If you mean: 16 and 20 then they are 80 and 4 respectively

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10y ago
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The LCM of 3, 15 and 36 is 180.

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12y ago
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They are: 6 and 9

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9y ago
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20 and 300

60 and 100

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7y ago
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They are 2, 4 and 10.

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7y ago
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3

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12y ago
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9 and 6

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13y ago
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2, 4 and 10

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7y ago
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Q: Which two numbers have an LCM of 18 and HCF of 3?
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