Table of Contents

LCM of 24 and 40 Using Listing the Multiples

LCM of 24 and 40 Using Prime Factorization

LCM of 24 and 40 Using Division Method

Common Mistakes and how to avoid them while finding the LCM of 24 and 40

LCM of 24 and 40, Examples

FAQ’s on LCM of 24 and 40

Important glossaries for the LCM of 24 and 40

Explore More numbers

242 Learners

Last updated on May 26th, 2025

LCM of 24 and 40

Q: List the factors of 24 and 40.

Numbers that are multiplied to reach 24 and 40 are called the factors of 24 and 40. Factors of 24 are 1,2,3,4,6,8,12,24 Factors of 40 are 1,2,4,5,8,10,20,40

Q: What is the LCM of 40 and 40?

The LCM of the numbers is 40 itself. It is the smallest number that is divisible by itself.

Q: What is the LCM of 24 and 36?

72 is the smallest number that appears commonly on the lists of the numbers 24 and 36. LCM (24,36)= 72

Q: What is the LCM of 24 and 30?

120 is the smallest number that appears commonly on the lists of the numbers 24 and 30. LCM (24,30)= 120

Q: Is 12 a factor of 20?

No, 12 is not a factor of 20. When we divide 20 by 12, a remainder is left behind which makes it not a factor. 20/12 = 1.667

Q: How can children in United States use numbers in everyday life to understand LCM of 24 and 40?

Numbers appear everywhere—from counting money to measuring ingredients. Kids in United States see how LCM of 24 and 40 helps solve real problems, making numbers meaningful beyond the classroom.

Q: What are some fun ways kids in United States can practice LCM of 24 and 40 with numbers?

Games like board games, sports scoring, or even cooking help children in United States use numbers naturally. These activities make practicing LCM of 24 and 40 enjoyable and connected to their world.

Q: What role do numbers and LCM of 24 and 40 play in helping children in United States develop problem-solving skills?

Working with numbers through LCM of 24 and 40 sharpens reasoning and critical thinking, preparing kids in United States for challenges inside and outside the classroom.

Q: How can families in United States create number-rich environments to improve LCM of 24 and 40 skills?

Families can include counting chores, measuring recipes, or budgeting allowances, helping children connect numbers and LCM of 24 and 40 with everyday activities.

Professor Greenline Explaining Math Concepts

LCM is a common multiple, the smallest value between the numbers 24 and 40. Did you know? We apply LCM unknowingly in everyday situations like setting alarms and to synchronize traffic lights and when making music.

LCM of 24 and 40 for US Students

What is the LCM of 24 and 40?

The LCM of 24 and 40 is 120. We can find the LCM using the Listing multiples method, the prime factorization method and the long division method. These are explained below.

Struggling with Math?

Get 1:1 Coaching to Boost Grades Fast !

LCM of 24 and 40 Using Listing the Multiples

Step1: Write down the multiples of the numbers. Don’t stop too early.

— Multiples of 24= 24,48,72,96,120,…

— Multiples of 40 = 40,80,120,160,200

Step 2: Find the smallest number common between the written multiples of 24 and 40

— The smallest common multiple is 120.

Thus, LCM (24,40) = 120

LCM of 24 and 40 Using Prime Factorization

Step1: factorize the numbers into its prime factors

24 = 2×2×2×3

40 = 2×2×2×5

Step2: find the highest powers of the factors of 24 and 40

Step3: Multiply the highest powers

LCM(24,40) = 120

LCM of 24 and 40 Using Division Method

Write the numbers 42,40 in a row

Divide them by their common prime factors, if there is one

Carry forward the numbers that are left undivided by the previously chosen factor

Continue dividing until the remainder is ‘1’

Multiply the divisors to find the LCM

LCM (24,40) = 120

Common Mistakes and how to avoid them while finding the LCM of 24 and 40

Listed here are a few mistakes that one can commit when trying to find the LCM of the numbers 3 and 8. Try to avoid them.

Mistake 1

Listing incorrect multiples

If the LCM of given numbers is 120, double-check that the number appears on the list of both 24 and 40.

Mistake 2

Prime factorization errors

Check if the numbers are prime factored correctly. For example, we may accidentally write 40 = 2×2×2×3 instead of 40 = 2×2×2×5

Mistake 3

Thinking product is the LCM

One may think the product of the numbers is the LCM of the numbers. This is only true in case of co-prime numbers.

Level Up with a Math Certification!

2X Faster Learning (Grades 1-12)

LCM of 24 and 40, Examples

Ray, the Character from BrightChamps Explaining Math Concepts

Problem 1

Verify the LCM-GCF relationship using the formula LCM(a,b)=a×b/GCF(a,b) for 18 and 24.

Ray, the Boy Character from BrightChamps Saying "Let’s Begin"

GCF of 18 and 24 is 6.

Use the formula: LCM(18,24)=18×24/6=432/6=72

Explanation

LCM = 72, relationship verified.

Problem 2

A running track is 24 meters long and 40 meters wide. What is the shortest length of a fence needed to enclose the track?

The LCM of 24 and 40 is 120.

Explanation

The smallest length that can be divided by both 24 and 40 can be divided by is 120. The shortest length of the fence is 120 meters. The LCM expresses the smallest common interval between the digits.

Problem 3

The LCM of two numbers is 72. One of the numbers is 24. What is the other number?

LCM = Product of the two numbers/GCF of the two numbers

The GCD of 24 and the unknown number is 6 (since LCM is 72).

Let the unknown number be x: 72=24×x/6

Solve: 72×6=24×x⇒x=432/24=18

Explanation

The other number is 18.

Turn your child into a math star!

#1 Math Hack Schools Won't Teach!

FAQ’s on LCM of 24 and 40

1.List the factors of 24 and 40.

2.What is the LCM of 40 and 40?

3.What is the LCM of 24 and 36?

4. What is the LCM of 24 and 30?

5. Is 12 a factor of 20?

6.How can children in United States use numbers in everyday life to understand LCM of 24 and 40?

7.What are some fun ways kids in United States can practice LCM of 24 and 40 with numbers?

8.What role do numbers and LCM of 24 and 40 play in helping children in United States develop problem-solving skills?

9.How can families in United States create number-rich environments to improve LCM of 24 and 40 skills?

Struggling with Math?

Get 1:1 Coaching to Boost Grades Fast !

Important glossaries for the LCM of 24 and 40

Multiple — product of a number and a natural integer

Prime factor — number one gets after prime factorization any given number

Prime factorization — the process of breaking the number into its prime factors.

Explore More numbers

About BrightChamps in United States

At BrightChamps, we believe numbers are more than just figures—they unlock a world full of possibilities! Our goal is to help children throughout the United States master key math skills, focusing today on the LCM of 24 and 40 with special attention to understanding the LCM—in a way that’s engaging, fun, and easy to grasp. Whether your child is calculating the speed of a roller coaster at Disney World, keeping score during a Little League baseball game, or managing their allowance to save for cool gadgets, knowing numbers builds confidence for everyday life. Our hands-on lessons make learning enjoyable and straightforward. Since kids in the USA have unique learning styles, we customize our methods to match each child’s needs. From the lively streets of New York City to the sunny beaches of California, BrightChamps brings math alive, making it meaningful and exciting all across America. Let’s make the LCM an exciting part of every child’s math adventure!

Hiralee Lalitkumar Makwana

About the Author

Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.

Fun Fact

: She loves to read number jokes and games.

Email us at
care@brightchamps.com

INDONESIA - Axa Tower 45th floor, JL prof. Dr Satrio Kav. 18, Kel. Karet Kuningan, Kec. Setiabudi, Kota Adm. Jakarta Selatan, Prov. DKI Jakarta

INDIA - H.No. 8-2-699/1, SyNo. 346, Rd No. 12, Banjara Hills, Hyderabad, Telangana - 500034

SINGAPORE - 60 Paya Lebar Road #05-16, Paya Lebar Square, Singapore (409051)

USA - 251, Little Falls Drive, Wilmington, Delaware 19808

VIETNAM (Office 1) - Hung Vuong Building, 670 Ba Thang Hai, ward 14, district 10, Ho Chi Minh City

VIETNAM (Office 2) - 143 Nguyễn Thị Thập, Khu đô thị Him Lam, Quận 7, Thành phố Hồ Chí Minh 700000, Vietnam

Dubai - BrightChamps, 8W building 5th Floor, DAFZ, Dubai, United Arab Emirates

UK - Ground floor, Redwood House, Brotherswood Court, Almondsbury Business Park, Bristol, BS32 4QW, United Kingdom

LCM of 24 and 40

What is the LCM of 24 and 40?

LCM of 24 and 40 Using Listing the Multiples

LCM of 24 and 40 Using Prime Factorization

LCM of 24 and 40 Using Division Method

Common Mistakes and how to avoid them while finding the LCM of 24 and 40

Mistake 1

Mistake 2

Mistake 3

LCM of 24 and 40, Examples

Problem 1

Explanation

Problem 2

Explanation

Problem 3

Explanation

FAQ’s on LCM of 24 and 40

1.List the factors of 24 and 40.

2.What is the LCM of 40 and 40?

3.What is the LCM of 24 and 36?

4. What is the LCM of 24 and 30?

5. Is 12 a factor of 20?

6.How can children in United States use numbers in everyday life to understand LCM of 24 and 40?

7.What are some fun ways kids in United States can practice LCM of 24 and 40 with numbers?

8.What role do numbers and LCM of 24 and 40 play in helping children in United States develop problem-solving skills?

9.How can families in United States create number-rich environments to improve LCM of 24 and 40 skills?

Important glossaries for the LCM of 24 and 40

Explore More numbers

Previous to LCM of 24 and 40

Next to LCM of 24 and 40

About BrightChamps in United States

Hiralee Lalitkumar Makwana

About the Author

Fun Fact