Prime and Composite Review

which number below is NOT prime?

• 7
• 4
• 2
• 13

Tags

CCSS.4.OA.B.4

Which number is neither prime nor composite?

• 1
• 2
• 3
• 4

Randy's house number is a composite number.  Which of the following could be Randy's house number?

• 29
• 39
• 59
• 79

Tags

CCSS.4.OA.B.4

What is the only even number that is a prime number?

• 1
• 2
• 3
• 7

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

Is the number 123 prime or composite?

• Prime 
• Composite

Is 3 a Prime or Composite number?

• Prime
• Composite

A prime number is...

• a number that has only one factor.
• a number that has at least two factors.
• a number that has more than two factors.
• a number that has only two factors.
  (1 and itself)

the only factors prime numbers have are:

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

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