Prime Factorization

What is finding prime factors of a number?

Tags

CCSS.4.OA.B.4

What are the two methods used in prime factorization

What are the prime factors of 27? (Show your solution!)

• 3x3x3

• 3x2x3

• 3x3x4

Find the prime factors of 45.

• 5x9

• 3x15

• 3x3x5

What are the prime factors of 90?

• 3x3x4x5

• 5x5x3

• 2x3x3x5

What is the prime factorization of 20 written in exponential notation?

• 2 x 5
• 1 x 20
• 2 x 10
• 2² x 5

What is the prime factorization of 24 written in exponential notation?

• 2³ x 3

• 2² x 3 x 4

• 2² x 3

• 3 x 8

Tags

CCSS.6.EE.A.1

What is the prime factorization of 18?

• 9 x 2
• 3 x 2²
• 3² x 2
• 3³

Tags

CCSS.4.OA.B.4

The following prime factorization represents which number:  2² x 3 x 7

• 14
• 84
• 42
• 70

Find the prime factorization of 100 in exponential form.

• 10 × 10

• 5⁴

• 4 x 25

• 2² × 5²