Prime Factorization

A prime number _________________

• must be odd.

• has only 2 factors.

• is only a single digit number.

• has more than 2 factors.

Tags

CCSS.4.OA.B.4

What is the correct prime factorization of 45?

• 5 x 9

• 15 + 30

• 2x3x5

• 3 x 3 x 5

What value would complete the prime factorization of 27?

3 x 3 x (a)  

Tags

CCSS.3.OA.A.4

Create the factor tree for 40

Tags

CCSS.4.OA.B.4

What is the prime factorization of 66?

• 2 x 3 x 11

• 6 x 11

• 11 x 3 x 3

• 55 + 11

Which number has a prime factorization of 2 x 5 x 7?

(a)  

Tags

CCSS.4.OA.B.4

What is the prime factorization of 60?

• 2 x 3 x 5

• 2 x 3 x 3 x 5

• 2 x 2 x 3 x 5

• 2 x 2 x 15

• 56 = 7 x 2 x 2 x 2 x 2

• 56 = 7 x 4 x 2  

• 56 = 7 x 2 x 2 x 2

• 56 = 7 x 8  

Tags

CCSS.4.OA.C.5

What value would complete the prime factorization of 63?

(a)   x 3 x 7

What is the prime factorization of 16?

• 2 x 8

• 2 x 2 x 2 x 2

• 4 x 4

• 2 x 2 x 4

Tags

CCSS.6.EE.A.1