Prime and composite numbers

A prime number has

• one factor.

• two factors.

• three or more factors.

Tags

CCSS.4.OA.B.4

Which of the following is a prime number?

• 3

• 6

• 9

• 12

Tags

CCSS.4.OA.B.4

Composite numbers have

• no factors.

• one factor.

• two factors.

• three or more factors.

Tags

CCSS.4.OA.B.4

Which of the following numbers is prime?

• 10

• 15

• 5

• 20

Tags

CCSS.4.OA.B.4

True or False?

1 is a prime number.

• True

• False

Which number below is NOT prime?

• 2
• 11
• 13
• 18

Tags

CCSS.4.OA.B.4

the only factors prime numbers have are:

• 0 and 1
• 0 and itself
• 1 and itself
• 1

Tags

CCSS.4.OA.B.4

Which list has only prime numbers?

• 2, 3, 4, 5
• 1, 5, 7, 9
• 2, 3, 5, 7
• 2, 4, 6, 8

Tags

CCSS.4.OA.B.4

Is 33 a prime or composite number?

• Prime
• Composite

Tags

CCSS.4.OA.B.4

Prime numbers between 10 and 20 are

• 11,12,17,19

• 11,13,15,17

• 11,13,17,18

• 11, 17,13,19

Tags

CCSS.4.OA.B.4