Prime Factorization

Is 5 prime or composite? 

• Prime
• Composite

Tags

CCSS.4.OA.B.4

A prime number

• has one factor
• has more than 2 factors
• has 100 factors
• has exactly 2 factors: 1 and the number

Tags

CCSS.4.OA.B.4

Use a factor tree to find the prime factorization of 105

• 7x5x3

• 11x5x3

• 7x5x2x1

• 7x5x3x2

Use a factor tree to find the prime factorization of 32

• 2x2x2x4

• 2x2x2x2x2

• 4x4x2

• 2x2x2x2x1

Tags

CCSS.4.OA.B.4

Use a factor tree to find the prime factorization of 60

• 5x3x2x2

• 7x6x5

• 5x3x3x2

• 7x5x4

Tags

CCSS.4.OA.B.4

Use a factor tree to find the prime factorization of 42

• 4x4x3

• 6x7

• 7x3x2

• 5x4x2

Tags

CCSS.4.OA.B.4

What is the greatest common factor of 36 and 40

• 2

• 9

• 4

• 8

Tags

CCSS.4.OA.B.4

What is the greatest common factor of 60 and 75

• 2

• 5

• 15

• 25

Tags

CCSS.6.NS.B.4

Select all of the prime numbers.

• 0

• 19

• 31

• 47

• 51

Tags

CCSS.4.OA.B.4

28 is a _______________ number

• prime

• composite

Tags

CCSS.4.OA.B.4