0

What are the common multiples of 21?

Updated: 8/29/2023

Wiki User

6y ago

Best Answer

The common factors are 1 and 7. (7 = 1 x 7 and 21 = 3 x 7)

The only common prime factor is 7, which is also the largest common factor.

Wiki User

7y ago
This answer is:
Study guides

20 cards

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

➡️
See all cards
3.82
3068 Reviews
More answers

Wiki User

6y ago

Multiples of 21 include 21, 42, 63, 84 and so on. For them to be common, they need to be compared to another set of multiples.

This answer is:

Wiki User

11y ago

You need at least two numbers to find a GCF.

This answer is:

Wiki User

6y ago

Multiples of 21 include 21, 42, 63, 84 and 105. For them to be common, they need to be compared to another set of multiples.

This answer is:

Add your answer:

Earn +20 pts
Q: What are the common multiples of 21?
Write your answer...
Submit
Still have questions?
Related questions

Common multiples of 21 and 49?

LCM of 21 &amp; 49 is 147, so all multiples of 147 are common multiples of 21 &amp; 49.

What are the Common multiples of 21 and 18?

there are infinite amount of common multiples.

What are common multiples of 9 21?

The common multiples of 9 and 21 are 63, 126, 189 and so on.

What are the two common multiples of 21 and 15?

Two common multiples of 21 and 15 are 105 and 315.

What are the multiples of 3and 21?

The common multiples of 3 and 21 are 21, 42, 63 and so on.

What are the common multiples of 21 and 11?

Multiply 21 and 11 to get a common multiple. Since 21 and 11 have no common factors, that also happens to be the least common multiple.All other common multiples are multiples of this least common multiple.

What are the common multiples of 21 and 9?

Any pair of numbers has an infinite set of common multiples. The lowest common multiple of 9 and 21 is 63 and the others are multiples of this, e.g. 63, 126, 189, 252, 315, ...

What are the common multiples of 3 7 but not 6?

Odd multiples of 21.

What is another common multiple of 21?

Multiples of 21 include 21, 42, 63, 84 and so on. For them to be common, they need to be compared to another set of multiples.

What are common multiples of 3 and 21?

Any multiple of 21.

105