Prime and Composite Numbers

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What are prime numbers?
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Prime numbers are numbers greater than 1 that have only two factors: 1 and themselves.
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What are composite numbers?
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Composite numbers are numbers that have more than two factors.
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Is 2 a prime or composite number?
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2 is a prime number because it has only two factors: 1 and 2.
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Is 4 a prime or composite number?
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4 is a composite number because it has three factors: 1, 2, and 4.
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Why is the number 1 neither prime nor composite?
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1 is neither prime nor composite because it has only one factor: itself.
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Is 5 a prime or composite number?
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5 is a prime number because it has only two factors: 1 and 5.
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Is 9 a prime or composite number?
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9 is a composite number because it has three factors: 1, 3, and 9.
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Can a prime number be even? If yes, which one?
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Yes, the only even prime number is 2, because it is only divisible by 1 and itself.
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List the prime numbers between 1 and 10.
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The prime numbers between 1 and 10 are 2, 3, 5, and 7.
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What is the smallest composite number?
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The smallest composite number is 4.
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How do you determine if a number is composite?
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A number is composite if it can be divided evenly by numbers other than 1 and itself.
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Is the number 11 a prime or composite number?
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11 is a prime number because it has only two factors: 1 and 11.
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What is a factor?
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A factor is a number that divides evenly into another number.
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Are all odd numbers prime? Why or why not?
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No, not all odd numbers are prime, as some odd numbers can have more than two factors, like 9.
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How can you test if a number is prime?
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To test if a number is prime, check if it is divisible only by 1 and itself without leaving a remainder.
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