Math Prime and Composite Numbers

We know that 10 is composite number, becaues there are many factors like (1,10,5 and 2)

• True

• False

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CCSS.4.OA.B.4

Which of the following numbers are prime?

• 7

• 2

• 55

• 13

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CCSS.4.OA.B.4

Which of these numbers is prime?

• 4

• 8

• 9

• 37

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CCSS.4.OA.B.4

Which of the following are composite numbers?

• 2

• 50

• 15

• 29

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CCSS.4.OA.B.4

Which of these numbers is composite?

• 12

• 5

• 11

• 17

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CCSS.4.OA.B.4

The number 2 is

• prime.

• composite.

• neither prime nor composite.

• both prime and composite.

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CCSS.4.OA.B.4

A prime number is always greater than 1.

• True, because 1 is neither prime nor composite and 2 is the first prime number.

• False, because one is prime.

Tags

CCSS.4.OA.B.4

The number 17 is a prime number

• True because the only factors of 17 are 1 and 17.

• False because 8 plus 9 is 17 too.

Tags

CCSS.4.OA.B.4

Choose all the prime numbers.

• 2

• 5

• 7

• 71

Tags

CCSS.4.OA.B.4

Choose all the composite numbers.

• 14

• 63

• 81

• 72

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CCSS.4.OA.B.4