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The ratio of the number of one-digit prime numbers to the number of one-digit composite numbers is one to one. The one-digit prime numbers are 2, 3, 5, and 7. The one-digit composite numbers are 4, 6, 8, and 9. Therefor, the ratio is 4:4, which simplifies to 1:1.

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7y ago
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9y ago

The ratio is 1.

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Q: What is the ratio of the number of one-digit prime numbers and the number of one-digit composite numbers?
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