Prime Factorization

Find the prime factorization of 18

• 2 • 9

• 2 • 2 • 3

• 2 • 3 • 3

• 3 • 6

Find the prime factorization of 60

• 5 • 12

• 2 • 3 • 3 • 5

• 2 • 2 • 3 • 5

• 2 • 2 • 2 • 2 • 2 • 2 • 2

Find the prime factorization of 30

• 2 • 2 • 5 • 7

• 2 • 3 • 3

• 2 • 3 • 7

• 2 • 3 • 5

Find the prime factorization of 81

• 2 • 2 • 7

• 2 • 2 • 2 • 5 • 7

• 4 • 4 • 4

• 3 • 3 • 3 • 3

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

Is 5 prime or composite? 

• Prime
• Composite

Tags

CCSS.4.OA.B.4

2 x 2 x 2 is the prime factorization of

• 6
• 12
• 22
• 8

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