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| 1. |
EASY
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What are all the common factors of 12 and 18?
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| 2. |
EASY
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What are all the common factors of 9 and 18?
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| 3. |
EASY
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What are the two smallest common multiples of 4 and 10?
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| 4. |
MEDIUM
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How many common factors do 20 and 85 have?
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| 5. |
MEDIUM
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What are the three smallest common multiples of 15 and 18?
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| 6. |
MEDIUM
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Fanny is buying apples. The number of apples she buys must be both a multiple of 5 and a multiple of 6. Which of the following could be the number of apples she buys?
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