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Factors of 21

Factors of 21 are 1, 3, 7. There are 3 integers that are factors of 21. The biggest factor of 21 is 7. Positive integers that divides 21 without a remainder are listed below.

What are the multiples of 21?

What are the factors of 21 in 2 pairs?

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

Factors of 21 Table

FactorFactor Number
1one
3three
7seven

Related Factors

Related Greatest Common Factors of 21

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