7th Grade Pre-Topic 4 Review

Find the GCF of 64 and 144

• 8
• 6
• 16
• 2

Find the LCM of 42 and 66

• 2772
• 6
• 462
• 132

Find the LCM of 18 and 24

• 6
• 72
• 24
• 5

What is the least common multiple (LCM) of 4 and 10?

• 4
• 40
• 15
• 20

Find the GCF of 12 and 6. 

• 1
• 6
• 2
• 3

51 is a _____________ of 3

• Factor 
• Multiple

List all the factors of 12.

• 1, 2, 3, 4, 6, 12

• 1, 2, 6, 12

• 1, 12

• 1, 3, 4, 12

What is the greatest common factor (GCF) of 5 and 7?

• 1

• 5

• 7

• 35

List all the factors of 25

• 1, 2, 3, 5, 10, 15, 25

• 1, 5, 25

• 1, 25

• 1, 5

Prime Numbers...

• are the same as composite numbers

• have only one factor pair: 1 and the number itself

• have at least more than 1 factor pair

•