Prime, Composite, Factors, and Multiples

What is a prime number?

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Which numbers are composite?

• 4

• 20

• 47

• 31

What is a least common multiple (LCM)?

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A number greater than 1 that has more than one factor pair

• Composite

• Prime

Is a multiple of a number the product of that number and a counting number?

• Yes

• No

What is a greatest common factor?

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What is a factor?

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What is the greatest common factor (GCF) of 45?

• 1

• 20

• 8

• 15

What is the least common multiple of 6 and 15?

• 30

• 1

• 125

• 12

What are ALL of the factors of 45?

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