LCM and GCF Word Problems Flashcard

Front

What is the GCF (Greatest Common Factor)?

Back

The GCF of two or more numbers is the largest number that divides all of them without leaving a remainder.

Front

How do you find the GCF of two numbers?

Back

To find the GCF, list the factors of each number and identify the largest factor they have in common.

Front

What is the LCM (Least Common Multiple)?

Back

The LCM of two or more numbers is the smallest number that is a multiple of all of them.

Front

How do you find the LCM of two numbers?

Back

To find the LCM, list the multiples of each number and identify the smallest multiple they have in common.

Front

What is a word problem involving GCF?

Back

A word problem that asks for the greatest number of items that can be evenly distributed among groups.

Front

What is a word problem involving LCM?

Back

A word problem that asks for the least number of days or times until two events coincide.

Front

If the GCF of 36 and 24 is 12, what does that mean?

Back

It means that 12 is the largest number that can divide both 36 and 24 without leaving a remainder.

Front

If a gardener waters plants every 9 days and 12 days, how do you find when both will be watered together?

Back

You find the LCM of 9 and 12, which is 36 days.

Front

What is the GCF of 45, 81, and 63?

Back

The GCF is 9, which is the largest number that can divide all three without a remainder.

Front

How can you use GCF to solve packing problems?

Back

Use GCF to determine the largest number of items that can be packed evenly in boxes.