Finding LCM and GCF of 8 and 12

What does LCM stand for?

• Least Common Multiple

• Largest Common Multiple

• Least Common Measure

• Largest Common Measure

What is the first step in creating a factor tree for the number 8?

• Multiply 2 by 4

• Multiply 3 by 3

• Multiply 2 by 3

• Multiply 4 by 4

Tags

CCSS.4.OA.B.4

Which of the following is a prime factor of 8?

• 6

• 8

• 4

• 2

Tags

CCSS.4.OA.B.4

What is the first step in creating a factor tree for the number 12?

• Multiply 2 by 4

• Multiply 2 by 6

• Multiply 3 by 4

• Multiply 3 by 3

Tags

CCSS.4.OA.B.4

Which of the following is a prime factor of 12?

• 12

• 6

• 2

• 8

Tags

CCSS.4.OA.B.4

What is the LCM of 8 and 12?

• 12

• 24

• 16

• 8

Which prime number is found in both 8 and 12?

• 4

• 3

• 6

• 2

Tags

CCSS.4.OA.B.4

What is the GCF of 8 and 12?

• 12

• 8

• 2

• 4

Which prime number is not found in both 8 and 12?

• 6

• 4

• 2

• 3

Tags

CCSS.4.OA.B.4

What is the final step in finding the GCF?

• Divide the common prime factors

• Subtract the common prime factors

• Add the common prime factors

• Multiply the common prime factors