GCF and LCM

Which number is composite?

• 2

• 3

• 4

• 5

Tags

CCSS.4.OA.B.4

Which number is prime?

• 23

• 25

• 33

• 35

Tags

CCSS.4.OA.B.4

Which number is composite?

• 11

• 12

• 13

Tags

CCSS.4.OA.B.4

What is the Least Common Multiple of 4 and 7

• 14

• 12

• 24

• 28

What is the Least Common Multiple of 9 and 18?

• 3

• 9

• 18

• 36

What is the Greatest Common Factor of 24 and 32?

• 1

• 6

• 8

• 12

What is the Greatest Common Factor of 25 and 50?

• 1

• 5

• 10

• 25

Jenna's Stationery sells thank-you cards in packs of 3 and birthday cards in packages of 9. Surprisingly, the store sold the same number of each type of card this month. What is the minimum number of each card type that the store must have sold?

• 3

• 6

• 9

• 18

This afternoon, Carla noticed that the number of the page assigned for homework is divisible by both 9 and 6. What is the smallest possible page number that could have been assigned?

• 9

• 18

• 36

• 24

Trudy is visiting the hospital in order to give stuffed animals and books to sick children. She has 12 stuffed animals and 18 books to give. If she wants to give the same combination of stuffed animals and books to each child, with no gifts left over, what is the greatest number of children Trudy can give gifts to?

• 2

• 3

• 6

• 12