LCM and GCF

by Charles Hanosek

| 12 Questions1

10

What does GCF stand for?

A Great Commons Fair

B Greatest Common Factor

C Great Cookie Finder

D Gadzooks! Cannon! Fire!

2

10

How do you find the GCF?

A Find all of the factors of these numbers. Then, find the greatest one that the
two numbers have in common.

B Find most of the factors of these numbers. Then, find the greatest one that
the two numbers have in common.

C Find someof the factors of these numbers. Then, find the greatest one that the
two numbers have in common.

3

10

What are the factors of 12?

A 1, 2, 6, 12

B 2, 6, 12

C 1, 2, 3, 6, 12

D 1, 2, 3, 4, 6, 12

4

10

What is the Greatest Common Factor of these two numbers:24, 36

A 6

B 12

C 24

D 36

5

10

What is the GCF of 18 and 25?

A 1

B 2

C 5

D 6

6

10

What is the GCF of these numbers: 24, 32

A 2

B 4

C 8

D 16

7

10

What do mathematicians call a number when the only factors it has are 1 and
itself? (Examples: 3, 7, 11, 13, 17, 23, etc.)

A Awesome!

B Composite

C Parallel

D Prime

8

10

What does LCM stand for?

A Last Call on the Microphone

B Last Common Multiple

C Least Common Multiple

D Last Calling Monkey

9

10

How do you find the Least Common Multiple?

A List all of the multiples of each number, then circle the least multiple that
they have in common.

B List most of the multiples of each number, then circle the least multiple that
they have in common.

C List a few of the multiples of each number, then circle the least multiple
that they have in common.

10

10

What is the LCM of these numbers: 10, 20?

A 1

B 10

C 20

D 40

11

10

What is the LCM of these numbers: 20, 25?

A 50

B 60

C 80

D 100

12

10

What is the LCM of these numbers: 15, 20?

A 60

B 100

C 120

D 140

Add to my formatives list

Formative uses cookies to allow us to better understand how the site is used. By continuing to use this site, you consent to the Terms of Service and Privacy Policy.