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Q: What are the factors and factor pairs of 21?

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The factor pairs of 21 are:1, 213, 7Therefore, the number 21 has two pairs of positive integer factors.

The factors of 21 are: 1, 3, 7, and 21. The factor pairs of 21 are (1, 21) and (3, 7).`1.3,7.21

Factors are single numbers. Factor pairs are listed in pairs.

The factor pairs for 21 are1 x 21 and 3 x 7

To find what the factors of a number are you can list the factor pairs: 1 x 21 3 x 7 The factors of 21 are 1, 3, 7, and 21.

These are the factor pairs:1750,1875,2350,5250,7175,10125,1470,2550,35

Factors are numbers you can multiply together to get another number. 21: (1, 21) (3, 7)

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

The factor pairs are all the factors of the number, just listed in pairs.

Factors can be listed singly or in pairs. The factors of 6 are 1, 2, 3, 6 The factor pairs of 6 are (6,1)(3,2)

(21,1)(7,3) (42,1)(21,2)(14,3)(7,6) Since 21 is a factor of 42, all the factors of 21 will be included in the factor pairs of 42.

Factors are 1, 3, 9, 27. Factor pairs are 1&27, 3&9

The difference is between factor pairs and distinct factors. With square numbers, one of the factor pairs will be the same number twice. When listing the distinct factors, that number is only listed once.

1,24

1 & 21, and 3 & 7

1 and 21, 3 and 7,

(1, 21) (3, 7)

21,17,3

1,21 3,7

(21,1)(7,3)

Factors: 1, 3, 9, 27. Pairs: (1,27);(3,9).

The factors of 8 are: 1,2,4,and 8. The factor pairs of 8 are: 1x8 2x4 These are the only two factor pairs

No.

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

(21,1)(7,3)