Common Factors
Greatest Common Factor
Common Multiples
Least Common Multiple
Real World Situations
100

How many factors does 8 have?

What is 4?

1,2,4,8

100

What is the GCF 10 of 12 and?

What is 2?

100

What is the lowest multiple of 8?

What is 8?

100

Which is the LCM of 20 and 30?

2, 5, 6, 10, 60

What is 60?

100

Mary is buying cups and plates for her party. Cups are sold in packs of 6 and plates are sold in packs of 8. She wants to have the same number of plates and cups. How many packs of plates does she need to buy to have the same number of cups.

What is 3 packs?

200

List for factors of 10.

What is 1,2,5, and 10?

200

What is the GCF of 30 and 18?

What is 6?

200

What is a common multiple of 5 and 8 under 100?

What is 40, or 80?

*note only has to be one*

200

What is the LCM of 6 and 10?


What is 30?

200

Hot dogs come in packs of 10. Hot dog buns come in packs of 8. How many packs of hot dogs buns does Liam need to buy to have the same number of hotdogs as he does buns, without going over.

What is 4 packs?

300

List six factors of 12.

What is 1, 2, 3, 4, 6 and 12?

300

What is the GCF of 12, 20, and 24?

What is 4?

300

Which is not a multiple of 4?

4,8,12,16,20,24,28,30,36,40

What is 30?

300

What is Least Common Multiple of 16 and 20?

What is 80?

300

Emily is assembling first-aid kits for her teachers. She has 75 bandages and 90 throat lozenges. All the kits must have the same number of each supply, and all supplies must be used.

  What is the largest number of kits the nurse can make?

What is 15?

400

List 3 factors of 425?

What is 1,5,17,25,85,425?

400

What is the GCF of 30 and 18?

What is 6?

400

List all the multiples of 9 under 60.

What is 9, 18, 27, 36, 45, 54?

400

What is the LCM of 8 and 14?

What is 56?

400

 To celebrate the first day of school, Martha is putting stickers on some of the 100 lockers along one side of her school’s hallway. She puts a horse sticker on every 4th locker (starting with locker 4), and a dog sticker on every 5th locker (starting with locker 5).

     Name three lockers that will get both stickers.

What is 20, 40, 80, 100?

*note only has to be three of these five*

500

List 10 factors of 300.

What is 1,2,3,4,5,6,10,12,15,20,25,30,50,60,75,100,150,300,

*note, only has to be 10 answers*

500

What is the Greatest Common Factor of 64 and 96?

What is 32?

500

List a multiple of 9,986,000.

What is 9,986,000, 1?

500

What is the LCM of 5, 12, and 20?

What is 60?

500

Jane baked the following fruit bars, 51 apple, 34 peach, and 85 plum. She wants to make baskets of the fruit dividing each kind of fruit bar among the baskets equally. How many of each fruit bar will be in each basket?

What is 3 apples, 2 peaches, and 5 plums?


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