LCM and GCF Review

Fill in the Blank

The GCF of 30 and 20 is _____.

Multiple Choice

What is the GCF of 18 and 24?

• 3

• 6

• 8

• 9

Multiple Choice

What is a factor?

• numbers we can multiply together to get another number

• the total amount resulting from the addition of two or more numbers, amounts, or items

• the action of separating something into parts or the process of being separated

• a number that is expressed as the ratio of two integers, where the denominator should not be equal to zero

Multiple Choice

What is a multiple?

• a number that is expressed as the ratio of two integers, where the denominator should not be equal to zero

• the total amount resulting from the addition of two or more numbers, amounts, or items

• the result of multiplying a number by an integer (not by a fraction)

• the action of separating something into parts or the process of being separated

Fill in the Blank

What is the least common multiple of 2 and 3?

Fill in the Blank

What is the least common multiple of 9 and 4?

Fill in the Blank

The GCF of 33 and 22 is ______.

Fill in the Blank

The GCF of 27 and 33 is _____.

Multiple Choice

Find the LCM of 2 and 10.

• 4

• 8

• 10

• 20

Multiple Choice

Find the LCM of 8 and 12.

• 24

• 5

• 16

• 48

Multiple Choice

Find the LCM of 14 and 4.

• 12

• 4

• 24

• 28