GCF and LCF Review

What is the definition of Greatest Common Factor (GCF)

• The Greatest multiple of 2 numbers

• None of the above

• The Greatest Factor Of 2 numbers

• All Of the above

List all the factors of 12

• 1, 2, 3, 4, 6, 12
• 1, 2, 4, 12
• 1, 12
• 1, 2, 3, 4, 5, 6, 12

Tags

CCSS.4.OA.B.4

What are the factors of 25?

• 1, 2, 3, 5, 10, 15, 25
• 1, 5,  25
• 1, 25
• 1, 5

Tags

CCSS.4.OA.B.4

What is the GCF of 8 and 10?

• 1
• 3
• 4
• 2

Find the greatest common factor of 20 and 30

• 2
• 5
• 10
• 15

Find the greatest common factor of 24 and 48

• 4
• 12
• 24
• 48

The Greatest Common Factor of two prime numbers is

• 0
• 1
• There are no common factors.
• Themselves.

The Greatest Common Factor of two prime numbers is

• 0
• 1
• There are no common factors.
• Themselves.

Find the greatest common factor of 30 and 36

• 2
• 3
• 6
• 18

Find the greatest common factor of 32 and 48

• 2
• 8
• 16
• 18