Finding GCF in Everyday Scenarios: A Prime Factorization Quiz

1. Sarah has 24 apples and 36 oranges. What is the greatest common factor (GCF) of the number of apples and oranges she has?

• 12

• 24

• 18

• 6

2. A gardener is planting flowers in rows. He has 18 red flowers and 30 yellow flowers. What is the GCF of the two amounts to find out how many rows he can plant?

• 12

• 9

• 3

• 6

3. Two friends are making gift bags. One has 40 candies and the other has 60 candies. What is the GCF of the candies to determine how many bags they can make with the same number of candies in each?

• 10

• 30

• 50

• 20

4. A teacher has 28 pencils and 42 erasers. What is the GCF of the pencils and erasers to find out how many groups of supplies she can make?

• 7

• 28

• 14

• 21

5. A baker has 48 cookies and 72 brownies. What is the GCF of the cookies and brownies to find out how many trays he can prepare with the same number of each treat?

• 48

• 24

• 36

• 12

6. Emily has 36 stickers and 54 stamps. What is the GCF of the stickers and stamps to determine how many collections she can create with the same number of items?

• 18

• 24

• 12

• 36

7. A toy store has 45 toy cars and 60 toy trucks. What is the GCF of the toy cars and trucks to find out how many sets of toys can be made?

• 10

• 20

• 30

• 15

8. A music teacher has 32 recorders and 48 flutes. What is the GCF of the recorders and flutes to find out how many music groups can be formed?

• 24

• 12

• 8

• 16

9. A farmer has 56 apples and 84 pears. What is the GCF of the apples and pears to determine how many baskets he can fill with the same number of fruits?

• 14

• 42

• 21

• 28

10. Two siblings have 18 marbles and 30 toy soldiers. What is the GCF of the marbles and toy soldiers to find out how many equal groups they can create?

• 9

• 6

• 12

• 4