Tags Math and Arithmetic Algebra

Animals & Plants Arts & Entertainment Auto Beauty & Health Books and Literature Business Electronics Engineering & Technology Food & Drink History Hobbies Jobs & Education Law & Government Math People & Society Science Social Studies Sports Travel & Places

0

Subjects>Math>Math & Arithmetic

How do you find LCM of 28 and 21?

Updated: 12/18/2022

Wiki User

∙ 12y ago

Best Answer

First you express the numbers as the product of their prime factors:

28 = 2x2x7

21 = 3x7

Next you find the HCF. In this case, the HCF is 7. Finally, you multiply the numbers together and divide by the HCF. 28x21/7 = 84

Therefore the LCM of 28 and 21 is 84.

Wiki User

∙ 12y ago

This answer is:

Add your answer:

Earn +20 pts

Q: How do you find LCM of 28 and 21?

Write your answer...

Submit

Still have questions?

imp

Continue Learning about Math & Arithmetic

Find the LCM for 14 21 and 28?

56.

What is the LCM of 21 28 and 42?

LCM(21, 28, 42) = 84

What is the LCM of 12 21 and 28?

LCM of 12 and 21 is 84, which is also a multiple of 28 so 84 is your answer.

What is the LCM of 21 28 and 32?

The LCM is: 672

What is the LCM of 18 and 21 and 28?

The LCM is: 252

Related questions

Find the LCM for 14 21 and 28?

56.

What is the LCM of 21 28 and 42?

LCM(21, 28, 42) = 84

What is the LCM of 21 14 and 28?

The LCM is: 84

What is the LCM for 6 21 and 28?

LCM(6, 21, 28) = 84.

What is the LCM of 28 what is the LCM of 21 what is the LCM of 9?

Of each of them on their own respectively is 28, 21 and 9. together is 252

What is the LCM of 273 21 and 28?

The Least Common Multiple (LCM) for 273 21 28 is 1,092.

What is the LCM of 35 21 and 28?

The Least Common Multiple (LCM) of 35, 21, and 28 is 420.

What is the LCM of 12 21 and 28?

LCM of 12 and 21 is 84, which is also a multiple of 28 so 84 is your answer.

What is the LCM of 21 28 and 32?

The LCM is: 672

What is the LCM of 18 and 21 and 28?

The LCM is: 252

What is the LCM 21 28 32?

The LCM is: 672

What is The least common multiple of 21 35 and 28?

The LCM of 2135 and 28 is 8540 The LCM of 21, 35 and 28 is 420.

Trending Questions

What is an equation that state that two ratios are equivalent? Why are bridgeshighwaysand sidewalks built in short segments with periodic breaks? What is XXXVIV in roman numerals? What number is bigger 0.845 or 1.054? What is the length of each side of a cube with a volume of 512? What are the roman numerals and what do they equal? What does men do once in their lifetime at age 29 but women always do after 29? X over 8 divided by 1 half? Why standard deviation is the best measurement for dispersion? What are two angels whose measures add up to 90 degrees? What is the value of x when -3x plus 7x equals -12? What regular polygons can tessellate a plane with no overlaps or gaps? How many divisors of 9600 are there including 1 and 9600? How many feet is in 123 inches? Where is digbert p from fratpad now? What do the angles in a ten sided shape add up to? What is 959 rounded to the nearest thousandth? What is the answer to 22 plus x equals 1? What is 10 percent of 80.000? What unit would you use to measure the width of a fingernail?

Previously Viewed

How do you find LCM of 28 and 21?

Unanswered Questions

What is social emotional learning for kids? How can social-emotional learning be used in the classroom? What is the teacher's role in social-emotional learning? How can teachers improve social emotional learning? What is the role of teachers in teaching social skills? What is meant by social and emotional learning? What are the 5 components of social emotional learning? What is Social Emotional Learning (SEL): Why It Matters?

Resources

Top Categories

Product

Company

Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.