Least Common Multiples vs. Greatest Common Factors (LCM vs. GCF) | Math with Mr. J

What is a multiple of a number?

• A number that divides evenly into another number.

• A number obtained by multiplying the original number by an integer.

• The largest number that divides two or more numbers evenly.

• The smallest number that is a multiple of two or more numbers.

What is the Least Common Multiple (LCM) of 12 and 9?

• 12

• 18

• 24

• 36

What is a factor of a number?

• A number obtained by skip counting from the original number.

• The smallest number that is a multiple of two or more numbers.

• A number that divides evenly into another number with no remainder.

• The largest number that is common to two or more lists of multiples.

Which statement best describes a factor of a number?

• A number you get by multiplying a number by an integer.

• A number that divides another number evenly, with no remainder.

• The smallest common number between two lists of numbers.

• The largest common number that divides two numbers.

Which statement best describes a multiple of a number?

• A number that divides another number evenly.

• A number you get by multiplying a number by an integer.

• The largest common number that divides two numbers.

• The smallest common number that two numbers share in their factor lists.

What is the Greatest Common Factor (GCF) of 12 and 9?

• 1

• 3

• 9

• 12

What is the Least Common Multiple (LCM) of 20 and 15?

• 15

• 20

• 30

• 60