Factors of 21 are 1, 3, 7, and 21; the factor pairs are (1 x 21) and (3 x 7).
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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 numbers you can multiply together to get another number. 21: (1, 21) (3, 7)
How they're listed. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)
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
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 numbers you can multiply together to get another number. 21: (1, 21) (3, 7)
(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.
There are two factor pairs of 21: 21 = 1 x 21 21 = 3 x 7
These are the factor pairs:1750,1875,2350,5250,7175,10125,1470,2550,35
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.
How they're listed. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)
1 & 21, and 3 & 7
1 and 21, 3 and 7,
(1, 21) (3, 7)
1,24