Prime Factorization

One is...

• prime

• composite

• not prime or composite

• the loneliest number

Tags

CCSS.4.OA.B.4

Which of the following is NOT prime?

• 29

• 23

• 17

• 39

Tags

CCSS.4.OA.B.4

Is 5, a prime or composite number?

• Prime

• Composite

Tags

CCSS.4.OA.B.4

Is 12, a prime or composite number?

• Prime

• Composite

Tags

CCSS.4.OA.B.4

2 x 2 x 2 is the prime factorization of...

• 6

• 12

• 22

• 8

Use a number tree to find the prime factorization of 60

• 5x3x2x2

• 7x6x5

• 5x3x3x2

• 7x5x4

Use a number tree to find the prime factorization of 42

• 4x4x3

• 6x7

• 7x3x2

• 5x4x2

Use a number tree to find the prime factorization of 64

• 4x4x4

• 4x4x2x2

• 2x2x2x2x2x2

• 4x4x2x1

Use a number tree to find the prime factorization of 72

• 2x2x2x3x3

• 4x3x3x2

• 4x2x2x2x2

• 4x3x2x2x2

Tags

CCSS.4.OA.B.4

Use a number tree to find the prime factorization of 111

• 33x3

• 11x3x3

• 37x3

• 9x4x3x1

Tags

CCSS.4.OA.B.4