Prime Factorization and Greatest Common Factor

Find the prime factorization of 420

• 2² • 3 • 5 • 7

• 7⁷

• 2² • 3 • 11

• 2³ • 3 • 7

What is the greatest common factor of 36 and 40

• 2

• 9

• 4

• 8

What number has the prime factorization of 2³ • 11?

• 55

• 66

• 88

• 99

What number has the prime factorization of 2³ • 3² • 5?

• 360

• 720

• 180

• 240

The correct way to write prime factorization is _______________________.

• greatest to least

• least to greatest

• alphabetical order

If two numbers do not share any common factors, they are considered to be _____________________________.

• Prime

• Half Prime

• Relatively Prime

• Sorta Prime

Tags

CCSS.4.OA.B.4

Find the prime factorization of 38.

• 38 = 2 x 19

• 38 = 5 x 6 x 8

• 38 = 5 x 6 x 6

Find the Greatest Common Factor (GCF) OF 32 and 64.

• 1

• 2

• 4

• 32

Find the GCF of 15 and 40

• 5

• 120

• 8

• None of these match my answer

Find the prime factorization of 56.

• 2x2x2x7

• 2x28

• 3x3x7