Exploring LCM and GCM Concepts

What is the purpose of this video?

• To solve algebraic equations

• To study geometry

• To understand the difference between GCF and LCM

• To learn about fractions

Which of the following is a factor of 6?

• 8

• 12

• 10

• 2

Tags

CCSS.4.OA.B.4

What is a multiple of 6?

• 5

• 12

• 3

• 4

Tags

CCSS.4.OA.B.4

What is the Greatest Common Factor (GCF) of 14 and 18?

• 14

• 2

• 7

• 18

Which of the following is NOT a step in finding the GCF?

• Circling prime factors

• Finding prime factors

• Multiplying all prime factors

• Identifying common factors

What is the Least Common Multiple (LCM) of 14 and 18?

• 126

• 42

• 18

• 14

Which of the following is a step in finding the LCM?

• Subtracting common factors

• Combining all factors including leftovers

• Using only the smallest prime factor

• Ignoring prime factors

What is the GCF of 24 and 64?

• 16

• 12

• 8

• 4

What is the LCM of 24 and 64?

• 256

• 128

• 320

• 192

Which of the following statements is true?

• LCM is the smallest of the smaller numbers

• LCM is always smaller than GCF

• GCF is the largest of the smaller numbers

• GCF is always larger than LCM