GCF and LCM Practice

Front

What does GCF stand for?

Back

GCF stands for Greatest Common Factor, which is the largest number that divides two or more numbers without leaving a remainder.

Front

What does LCM stand for?

Back

LCM stands for Least Common Multiple, which is the smallest number that is a multiple of two or more numbers.

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 that they have in common.

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 that they have in common.

Front

What is the GCF of 40 and 32?

Back

The GCF of 40 and 32 is 8.

Front

What is the LCM of 8 and 5?

Back

The LCM of 8 and 5 is 40.

Front

If you have 18 oranges and 27 pears, what is the greatest number of fruit baskets you can make with the same number of each fruit?

Back

You can make 9 fruit baskets.

Front

What is the maximum number of goody bags that can be made with 36 chew toys, 24 dog bones, and 18 chase toys?

Back

The maximum number of goody bags is 6.

Front

If Melanie has track pieces that are 8 inches long and Martin has pieces that are 20 inches long, what is the shortest track they can both build?

Back

The shortest track they can both build is 40 inches.

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder.