Prime or Composite?

A number that has only two factors, 1 and itself, is called a _______ number.

• prime
• composite
• odd
• even

Tags

CCSS.4.OA.B.4

A number that has more than 2 factors is called a __________ number.

• prime
• composite
• odd
• even

Tags

CCSS.4.OA.B.4

7 is a ________ number.

• prime
• composite

Tags

CCSS.4.OA.B.4

Which number below is NOT prime?

• 3
• 7
• 9
• 11

Tags

CCSS.4.OA.B.4

Composite numbers:

• Are always bigger than prime numbers
• Have more than 2 factors
• Have 2 pairs of factors
• Don't have factors

Tags

CCSS.4.OA.B.4

What are all prime numbers divisible by?

• 1, 2, and itself
• 1 and itself
• Every number from 1-10
• They aren't divisable at all

Tags

CCSS.4.OA.B.4

Is 33 a prime or composite number?

• Prime
• Composite

Tags

CCSS.4.OA.B.4

Which number is neither prime nor composite?

• 1
• 2
• 3
• 4

Tags

CCSS.4.OA.B.4

Four students each made a list of prime numbers.
Eric:   5, 7 17, 23
Maya:  3, 5, 13, 17
Bella:  2, 3, 17, 19
Joan:  7, 11, 13, 21
Who made an error and included a composite number?

• Eric
• Maya
• Bella
• Joan

Tags

CCSS.4.OA.B.4

Which of the following is NOT true about prime numbers? 

• They have exactly two factors 
• 1 is a factor of every prime number
• No prime numbers end in zero
• All prime numbers are odd numbers.  

Tags

CCSS.4.OA.B.4