Prime Composite

Which of the following numbers is a prime number?

• 1

• 11

• 21

• 51

Tags

CCSS.4.OA.B.4

Why is 1 neither prime or composite?

• It only has one factor

• It has three factors

• It isn't a number

• It is too close to 2

Tags

CCSS.4.OA.B.4

What is a prime number?

• A number with 1 factor

• A number with 2 factors

• A number with 3 factors

• 2 factors (1 and itself)

Tags

CCSS.4.OA.B.4

Write all the prime numbers less than 10.

Tags

CCSS.4.OA.B.4

Is 29 prime or composite?

• Prime

• Composite

Tags

CCSS.4.OA.B.4

Choose a prime number from the list.

• 7

• 8

• 9

• 10

Tags

CCSS.4.OA.B.4

which of the following is not a prime number?

• 41

• 43

• 45

• 47

Tags

CCSS.4.OA.B.4

Which of the following is a prime number?

• 72

• 73

• 74

• 75

Tags

CCSS.4.OA.B.4

Which one of the following is not a prime number?

• 7

• 17

• 27

• 37

Tags

CCSS.4.OA.B.4

Which of the following is not a prime number?

• 53

• 67

• 87

• 97

Tags

CCSS.4.OA.B.4