TEKS.MATH.5.4A

What is the greatest common factor of 6 and 21?

• 6
• 2
• 3
• 7

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TEKS.MATH.5.4A

Which number below is a composite number?

• 16
• 17
• 23
• 29

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TEKS.MATH.5.4A

All of these are prime except

• 3
• 9
• 2
• 13

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TEKS.MATH.5.4A

Which list has only composite numbers?

• 4; 5; 8; 20
• 19; 21; 23; 25
• 24; 25; 26; 27
• 38; 39; 40; 41

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TEKS.MATH.5.4A

How many factors does a prime number have?

• 1

• 3

• 2

• 4

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TEKS.MATH.5.4A

Is 36 prime or composite?

• prime, because it only has 2 factors

• composite because it has 9 factors

• composite, because it has 8 factors

• composite, because it has 10 factors

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TEKS.MATH.5.4A

Which list has ONLY prime numbers?

• 1, 2, 3

• 2, 3, 5

• 2, 3, 4

• 2, 4, 6

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TEKS.MATH.5.4A

The list 2, 3, 5, 7, 11, 13, 17, 19, 23 includes

• Prime Numbers only

• Composite Numbers only

• Both Prime and Composite

• None of the other answers

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TEKS.MATH.5.4A

A number that has EXACTLY TWO FACTORS is called a...

• odd

• even

• prime

• composite

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TEKS.MATH.5.4A

What value would complete the prime factorization of 27?

3 x 3 x ____

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TEKS.MATH.5.4A