GCF and Division

A gardener has 18 roses and 24 tulips. She wants to plant them in rows with the same number of flowers in each row. What is the greatest number of flowers she can plant in each row?

• 2

• 3

• 6

• 12

What is the GCF of 32 and 48?

• 8

• 12

• 16

• 24

Hot dogs come in packs of 10, while hot dog buns come in packs of 12. You would like to buy enough of each (hot dogs and buns) so that when you put together the hot dogs with the buns, you have nothing left over. What is the least number of hot dog/buns you can make?

• 36

• 48

• 52

• 60

To encourage public transportation, Dorothy wants to give some friends envelopes with bus tickets and light rail tickets in them. If she has 18 bus tickets and 12 light rail tickets split equally among the envelopes, and wants no tickets left over what is the greatest number of envelopes Dorothy can make?

• 6 Envelopes

• 12 Envelopes

• 18 Envelopes

• 24 Envelopes

Find the greatest common factor of 20 and 30

• 2

• 5

• 10

• 15

Answer explanation

The Greatest Common Factor of two prime numbers is

• 0

• 1

• There are no common factors.

• Themselves.

Answer explanation

What is the GCF of 8 and 10?

• 1

• 3

• 4

• 2

What does GCF stand for?

• Great Change Factors

• Greatest Common Factor

• Greatest Common Showman

• Grandest Combined Factor

What is the GCF of 4 and 12?

• 3

• 1

• 6

• 4

GCF of 28 and 40

• 2

• 4

• 7

• 8