Unit 7: Factors and Multiples

Factors

100

Question 1B

1, 2, 3, 4, 6, 9, 12, 18, and 36

200

Question 1C

1 and 36, 2 and 18, 3 and 12, 4 and 9, 6 and 6

Composite

300

Question 12

2, 3, 5

400

Question 1A

9 Total:

1 x 36, 2 x 18, 3 x 12, 4 x 9, 6 x 6

36 x 1, 18 x 2, 12 x 3, 9 x 4

500

Question 2

16, 48: Multiples

1, 2, 4: Factors

8, 16: Factors

32, 64: Multiples

Multiples

300

Question 6

Possible Answers (could be any 3)

Multiples: 48, 72, 96, ...

Factors: 1, 2, 3, 4, ...

400

Question 7

Possible Answers:

Multiples: 21 and 42

Factors: 7 x 3 and 7 x 6

500

Question 5 **There are two correct answers!

8 / 4 = 2

48 / 8 = 6

Word Problems

300

Question 9

6 and 7 are factors of 42

42 is a multiple of 6 and a multiple of 7

400

Question 11

72 and 78

6 x 12 = 72 and 6 x 13 = 78

500

Question 13

Possible Answer: 

9, because it has more than 1 factor (1 x 9 and 3 x 3)

Prime/ Composite

100

Question 3

A

200

Question 10

B

300

Question 4

19: Prime- 1, 19

33: Composite- 1, 3, 11, 33

400

Question 8

A, D, E, F

Catch All From Review

100

Tell whether the numbers are prime or composite?

13

55

29

13: Prime

55: Composite

29: Prime

200

What are five multiples of the number 3?

3, 6, 9, 12, 15, ...

300

Tell whether the first number is a multiple of the second number: 22, 2

Yes

400

What are ALL the factor pairs of 24?

1 and  24, 2 and 12, 3 and 8, 4 and 6

500

What are all the factors of 56?

1, 2, 4, 7, 8, 14, 28, 56