Eureka Math Module 3 Topic E-F Review

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What is a multiple of 6?

Back

A multiple of 6 is any number that can be expressed as 6 times an integer. For example, 12 is a multiple of 6 because 6 x 2 = 12.

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What is a composite number?

Back

A composite number is a number that has more than two factors. For example, 4 is composite because it can be divided by 1, 2, and 4.

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What is a prime number?

Back

A prime number is a number that has exactly two distinct factors: 1 and itself. For example, 5 is prime because it can only be divided by 1 and 5.

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What is a factor pair?

Back

A factor pair consists of two numbers that, when multiplied together, equal a given number. For example, (2, 12) is a factor pair of 24 because 2 x 12 = 24.

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Is 15 a prime or composite number?

Back

15 is a composite number because it has more than two factors: 1, 3, 5, and 15.

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What are factors?

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Factors are numbers that can be multiplied together to get another number. For example, the factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.

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What is the smallest prime number?

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The smallest prime number is 2.

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What is the largest single-digit prime number?

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The largest single-digit prime number is 7.

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What is the difference between prime and composite numbers?

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Prime numbers have exactly two factors (1 and itself), while composite numbers have more than two factors.

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Can a number be both prime and composite?

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No, a number cannot be both prime and composite. It is either one or the other.