Tags Factoring and Multiples

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>Basic Math

What is the least common factor of 18 and 21?

Anonymous

∙ 14y ago

Updated: 4/28/2022

The factors of 18 are 1, 2, 3, 6, 9, and 18.

The factors of 21 are 1, 3, 7, and 21.

The common factors are 1 and 3. Therefore, the least common factor (the smallest common factor) is 1.

Factorizations:

18-3x3x2

21-7x3

Wiki User

∙ 14y ago

Still curious? Ask our experts.

Chat with our AI personalities

Rene

Change my mind. I dare you.

Chat with Rene

Ross

Every question is just a happy little opportunity.

Chat with Ross

Rafa

There's no fun in playing it safe. Why not try something a little unhinged?

Chat with Rafa

Add your answer:

Earn +20 pts

Q: What is the least common factor of 18 and 21?

Write your answer...

Submit

Still have questions?

imp

Continue Learning about Basic Math

What is the least common factor of 16 and 21?

The factors of 16 are 1, 2, 4, 8, and 16. The factors of 21 are 1, 3, 7, and 21. The only common factor is 1; they are relatively prime. The least (or lowest) common factor is 1. The greatest (or highest) common factor is 1.

What is the least common factor of 9 and 21?

Answer: 1 The factors of 9 are 1, 3, and 9. The factors of 21 are 1, 3, 7, and 21. The common factors are 1 and 3; the least (smallest) common factor is 1.

What is the least common factor of 14 and 21?

The least common factor of any set of numbers is 1.

What is the LCM of 18 21 and 56?

The least common multiple (LCM) of 18, 21, and 56 is 504.

What is the greatest common factor of 18 and 21?

The greatest common factor (GCF) of two numbers is the largest number that divides both numbers without leaving a remainder. To find the GCF of 18 and 21, you can list the factors of each number: 18 (1, 2, 3, 6, 9, 18) and 21 (1, 3, 7, 21). The common factors are 1 and 3, and the greatest common factor is 3.

Trending Questions

How much is 1360 pounds converted into US currency? What are the factors of 288? Is 0.2020020002.. a rational number? What is a cordinal number? How do you reduce an improper fraction? What is 0.75 percent of 275? What fraction of 1.25? What is 15 percent of 666? What is the greatest common factor of 25 and 50? What is the decimal fraction of 9.4? What is the factor of m3 1? What is 133 percent as a fraction in simplest form? How do you change 0.14285714 into a percent? What is the gcf of 27 21 39? What is 734.76 rounded to? How many cups to 1 lb of mortar mix? Seventy - two is what percent of ninety? Jenny split 78 pounds of candy among 6 people. What is the unit rate in pounds per person Write your answer in simplest form? What is the imaginary number i to the 0 power equal to? What is the gas constant R for water?

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.