GCF & LCM (CFA Review)

The elementary school lunch menu repeats every 25 days; the middle school lunch menu repeats every

15 days. Both schools are serving chicken tenders today.

In how many days will both schools serve chicken tenders again?

• 5 days

• 10 days

• 40 days

• 75 days

The Venn diagram shows the prime factors of 72 and 108

What is the value of p?

• 2

• 3

• 9

• 12

Tatyana is planting 24 flowers and 6 bushes in a garden. She must put at least one bush and an

unknown amount of flowers in each row of the garden. The rows in the garden must be of equal length.

When she is finished planting the garden, Tatyana cannot have any plants left over. Which factor

represents the greatest amount of rows Tatyana can plant?

• 2

• 3

• 4

• 6

What is the greatest common factor of 45 and 75?

• 3

• 5

• 15

• 30

At a school fundraiser, batteries are available only in packages of 6. A new robot toy requires 8

batteries. If Mark wants to purchase several of these toys with the exact number of batteries for each toy,

what is the least amount of each he should purchase?

• 3 packages of batteries and 2 robot toys

• 3 packages of batteries and 2 robot toys 3 packages of batteries and 3 robot toys

• 4 packages of batteries and 3 robot toys

• 8 packages of batteries and 6 robot toys

Matt has soccer practice on May 4. He will practice every fourth day after that. Kent begins baseball

practice on May 3, and continues practice every third day after that. What will be the first date on which

they both have practice.

• May 5

• May 7

• May 12

• May 24

The 2-way radio Michael wants runs on 6 batteries. The store sells batteries in packs of 10. What is the

least number of pack of batteries Michael should buy so he has sets of batteries for the radio with no

batteries left over?

• 1

• 2

• 3

• 4

What is the greatest common factor of 11 and 17?

• 1

• 17

• 28

• 187

What is another way to express 69 + 12?

• 3(23 x 4)

• 3(23 + 4)

• 6(9 + 2)

• 6(9 x 2)

Jason is buying hot dogs and hot dog buns for a party. Hot dogs are sold in packages of 8 and buns in

packages of 12. What is the least number of packages of hot dogs and hot dog buns that Jason can

buy to have an equal number of hot dogs and buns?

• 2 packages of hot dogs and 2 packages of hot dog buns

• 3 packages of hot dogs and 2 packages of hot dog buns

• 4 packages of hot dogs and 5 packages of hot dog buns

• 5 packages of hot dogs and 4 packages of hot dog buns