Greatest Common Factor and Least Common Multiple

GCF

100

GCF of 20 and 26

2

200

GCF of 15 and 9

3

300

GCF of 33 and 55

11

400

GCF of 60 and 72

12

500

GCF of 50, 30, and 100

10

LCM

100

LCM 5 and 11

55

200

LCM of 8 and 32

32

300

LCM of 9 and 12

36

400

LCM of 9 and 15

45

500

LCM of 40 and 60

120

Factors

100

Factors of 26

What is 1, 2, 13, and 26

200

Factors of 25

What is 1, 5, and 25

300

Factors of 55 less than 12

1 - 5 - 11

400

factors of 45 less than 16

1, 3, 5, 9, and 15

500

Factors of 60 less than 25

1, 2, 3, 4, 5, 6, 10, and 12, 

Distributive Property

100

Simplify 5+10

5(1+2)

200

Simplify 12 + 16

4(3+4)

300

Simplify 24 + 36

12(2+3)

400

Simplify 35 + 35

35(1+1)

500

Simplify 45 + 54

9(5+6)

Review

100

What does LCM mean?

least common multiple

200

What does GCF mean?

greatest common factor

300

How many LCMs or GCFs can there be between two numbers?

1

400

a(b+c) = ab+ac ... is the equation for what property?

Distributive Property

500

If a word problem uses the phrase "in how many days," what is that problems asking you to find?

LCM