GCF/LCM/Factoring

What is the GCF of 18 and 20

• 1

• 6

• 2

• 10

What is the LCM of 15 and 3?

• 15

• 30

• 45

• 60

Write the Factored Form

16 + 12

• 4(16 + 12)

• 2(8 + 6)

• 4(3 + 4)

• 4(4 + 3)

What does GCF stand for?

• Greatest common donuts

• Goodest Crayon Dino

• Greatest Common Factor

• Greatest Common Multiple

What does LCM stand for?

• Least Common Maximum

• Least Crazy Mom

• Least Common Denominator

• Least Common Multiple

Write the factored form

20 + 25

• 5(5 + 4)

• 5(4 + 5)

• 4(4 + 5)

• 4(5 + 4)

Write the factored form

12 + 48

• 12(1 + 4)

• 12(6)

• 4(3 + 12)

• 4(15)

What is the GCF of 27 and 18?

• 3

• 6

• 9

• 12

What is the GCF of 45 and 5?

• 1

• 15

• 45

• 5

What is a prime number?

• The only numbers that can go into it are 2 and itself

• The only numbers that can go into it are 1 and itself

• it has multiple numbers that can go into it.

• There are only 5 numbers that can go into it