How to Find the Least Common Multiple (LCM) of Two Numbers by Listing Multiples | LCM of 15 and 20

3 years ago
19

In this video we learn how to find the least common multiple (LCM) of two numbers by listing the multiples. The two numbers we find the LCM of are 15 and 20.

The steps on how to find the least common multiple (LCM) of two numbers by listing multiples are:

1) List the first several multiples of each number.
2) Look for multiples common to both lists. If there are no common multiples in the lists, write out additional multiples for each number.
3) Look for the smallest number that is common to both lists.
4) This number is the LCM.

#primefactorization #LCM #minutemath #algebrahelp #algebra #prealgebra #beginningalgebra #mathhelp #onlinemathvideos #lightboard #math #mathvideos #oer #openeducation #freemathvideos

Here is the link to our website which covers this topic more in depth:
https://minutemath.com/pre-algebra/prime-factorization-and-the-least-common-multiple/

Every Month we have a new GIVEAWAY that is FREE to Enter. See link below for details. You can enter Every Month!
https://minutemath.com/giveaway/

Amazon Store Front: How we make our videos, Recommended Educational Resources, Etc.:
https://www.amazon.com/shop/minutemath

Subscribe to our YouTube Channel:
https://www.youtube.com/user/MinuteMath?sub_confirmation=1

Visit our website for links to all of our videos:
https://minutemath.com/

Need a Math Tutor?
https://minutemath.com/tutor/

Visit our STEM Store for all your Math and Science Gear: https://minutemathshop.com/

Join our Discord Server for Math Talk and Math Help!
https://discord.gg/4TrHnzJ

Great Educational Resources Here:
https://minutemath.com/resources/

Subscribe to our other Life and Finance/Business YouTube Channel:
https://www.youtube.com/channel/UCkpi6LiBAMAW0gUtRJfEL3Q?sub_confirmation=1.

Consider supporting us on Patreon...
https://www.patreon.com/MinuteMath

Follow us for...
Tweets: https://twitter.com/minutemath
Instagram: https://www.instagram.com/minutemath/
Facebook: https://www.facebook.com/MinuteMath/
Personal Instagram: https://www.instagram.com/gannonforpresident/
Business Instagram: https://www.instagram.com/minutebusinessacademy/

CC Licensed Content, Original

Revision and Adaptation. Provided by: Minute Math. License: CC BY 4.0
CC Licensed Content, Shared Previously

Marecek, L., Anthony-Smith, M., & Mathis, A. H. (2020). Use the Language of Algebra. In Prealgebra 2e. OpenStax. https://openstax.org/books/prealgebra-2e/pages/2-5-prime-factorization-and-the-least-common-multiple. License: CC BY 4.0. Access for free at https://openstax.org/books/prealgebra-2e/pages/1-introduction

Loading comments...