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How many factor pairs does 21 have?

Updated: 9/17/2023

Wiki User

∙ 15y ago

Best Answer

The factor pairs of 21 are:

1, 21
3, 7

Therefore, the number 21 has two pairs of positive integer factors.

Wiki User

∙ 15y ago

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What are math factor pairs of 21?

21,17,3

What is a list of the factor pairs of 21?

(21,1)(7,3)

What are the integer factor pairs for -21?

(21,-1)(7,-3)(-21,1)(-7,3)

How many factor pairs does 30 have?

30 has four factor pairs:30,115,210,36,5

What are factor pairs of 84?

Factor pairs of 84 are: 2 x 42, 3 x 28, 4 x 21, 6 x 84, 7 x 12

Related questions

Factor pairs of twenty one?

There are two factor pairs of 21: 21 = 1 x 21 21 = 3 x 7

What are the factors and factor pairs of 21?

Factors of 21 are 1, 3, 7, and 21; the factor pairs are (1 x 21) and (3 x 7).

What are the factor pairs for 21?

1 & 21, and 3 & 7

Factor pairs for 21?

1 and 21, 3 and 7,

What or the factor pairs of 21?

(1, 21) (3, 7)

What are factor pairs of 21?

1,21 3,7

What are math factor pairs of 21?

21,17,3

What is a list of the factor pairs of 21?

(21,1)(7,3)

How many factor pairs in 3000?

Sixteen factor pairs.

What are the integer factor pairs for -21?

(21,-1)(7,-3)(-21,1)(-7,3)

How many factor pairs does 30 have?

30 has four factor pairs:30,115,210,36,5

How many factor pairs does 20 have and what are they?

20 has 3 factor pairs. Pairs are (1,20), (2,10) and (9,9)

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