Prime Factors

Is 5 prime or composite? 

• Prime
• Composite

All of these are prime except

• 3
• 9
• 2
• 13

Tags

CCSS.4.OA.B.4

2 x 2 x 2 is the prime factorization of

• 6
• 12
• 22
• 8

Tags

CCSS.6.EE.A.1

Which is the prime factorization of 12? 

• 2 x 6
• 2 + 2 + 2 + 2 + 2 + 2 
• 2 x 2 x 3
• 1 x 2 x 2 x 3

Use a number tree to find the prime factorization of 48

• 4x2x6
• 4x2x2x3
• 3x2x2x2x2
• 12x4

Use a number tree to find the prime factorization of 72

• 2x2x2x3x3
• 4x3x3x2
• 4x2x2x2x2

Use a number tree to find the prime factorization of 105

• 7x5x3
• 11x5x3
• 7x5x2x1
• 7x5x3x2

What is the prime factorization of 50?

• 1, 2, 5, 10, 25, 50
• 1 x 50
• 2 x 25
• 2 x 5 x 5

What is the prime factorization of 24?

• 2 x 12
• 2 x 2 x 2 x 3
• 4 x 6
• 1, 2, 3, 4, 6, 8, 12, 24

What is the prime factorization of 18?

• 2 x 9
• 2 x 3 x 3
• 1, 2, 3, 6, 9, 18
• 2 x 2 x 3