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Factors of 21 | Find the Factors of 21 by Factoring Calculator

Factoring Calculator calculates the factors and factor pairs of positive integers.

Factors of 21 can be calculated quickly with the help of Factoring Calculator i.e. 1, 3, 7, 21 positive integers that divide 21 without a remainder.

Factors of 21 are 1, 3, 7, 21. There are 4 integers that are factors of 21. The biggest factor of 21 is 21.

Factors of:

Factor Tree of 21 to Calculate the Factors


21
37
Factors of 21

Factors of 21 are 1, 3, 7, 21. There are 4 integers that are factors of 21. The biggest factor of 21 is 21.

Positive integers that divides 21 without a remainder are listed below.

Factors of 21 List

  • 1
  • 3
  • 7
  • 21

Factors of 21 in pairs

  • 1 × 21 = 21
  • 3 × 7 = 21
  • 7 × 3 = 21
  • 21 × 1 = 21

Factors of 21 Table

FactorFactor Number
1one
3three
7seven
21twenty one

How to find Factors of 21?

As we know factors of 21 are all the numbers that can exactly divide the number 21 simply divide 21 by all the numbers up to 21 to see the ones that result in zero remainders. Numbers that divide without remainder are factors and in this case below are the factors

1, 3, 7, 21 are the factors and all of them can exactly divide number 21.

Related Factors

Related Greatest Common Factors of 21

Frequently Asked Questions on Factors of 21

1. What are the factors of 21?

Answer: Factors of 21 are the numbers that leave a remainder zero. The ones that can divide 21 exactly i.e. factors are 1, 3, 7, 21.

2.What are Factor Pairs of 21?

Answer:Factor Pairs of 21 are

  • 1 × 21 = 21
  • 3 × 7 = 21
  • 7 × 3 = 21
  • 21 × 1 = 21

3. What is meant by Factor Pairs?

Answer:Factor Pairs are numbers that when multiplied together will result in a given product.