Prime Factorization

Which is a factor of 15?

• 2
• 3
• 4
• 6

Tags

CCSS.4.OA.B.4

Which is a NOT a factor of 9?

• 0
• 1
• 3
• 9

Tags

CCSS.4.OA.B.4

List all the factors of 12

• 1, 2, 3, 4, 6, 12
• 1, 2, 4, 12
• 1, 12
• 1, 2, 3, 4, 5, 6, 12

Tags

CCSS.4.OA.B.4

Which of these is NOT a factor of 36?

• 2
• 8
• 12
• 6

Tags

CCSS.4.OA.B.4

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

All of these are prime except

• 3
• 9
• 2
• 13

Tags

CCSS.4.OA.B.4

Use a number tree to find the prime factorization of 34

• 2x2x2x4
• 2x2x2x2x2
• 4x4x2
• 2x2x2x2x1

Use a number tree to find the prime factorization of 42

• 4x4x3
• 6x7
• 7x3x2
• 5x4x2

Tags

CCSS.4.OA.B.4

Use a number tree to find the prime factorization of 33

• 33
• 11x3
• 10x3
• 3x3x3x2