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What is the smallest single-digit composite number?
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9
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4
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2
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1
That's Correct!
It's Wrong!
A composite number is defined as a positive integer that has at least one positive divisor other than one or itself. The smallest single-digit composite number is 4. This is because 4 can be divided evenly by 1, 2, and 4, making it the first single-digit number that fits the definition of a composite number. Numbers like 2 and 1 are not composite; 2 is a prime number and 1 is neither prime nor composite as it only has one divisor, which is itself.
