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There are not always an even number of factor pairs of a number - for example, prime numbers have an even number of factors, because they are divisible by themselves and 1, but this is only one pair of factors. However, for any square number, (for example, 3 x 3 = 9, 4 x 4 = 16), at least one of these factor pairs will consist of the same number repeated twice.
Wiki User
∙ 14y ago
Wiki User
∙ 8y agoThat's not always true.
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What are the factor pairs of 1080?
These are the 16 factor pairs for the number 1,080:1080,1540,2360,3270,4216,5180,6135,8120,9108,1090,1272,1560,1854,2045,2440,2736,30
How many factor pairs does 21 have?
The factor pairs of 21 are:1, 213, 7Therefore, the number 21 has two pairs of positive integer factors.
What is a number less than 100 and has factor pairs?
All of the composite numbers less than 100 have factor pairs.
Which number is a common factor of any pairs of number?
One divides any number
How would a list of factors pairs relate to the rectangles that could be made to show the number?
As I understand it, the number of factor pairs is equal to the number of rectangles.
What is the definition to factor pairs?
its a factor with two pairs of the same number
What are the factor pairs of 1080?
These are the 16 factor pairs for the number 1,080:1080,1540,2360,3270,4216,5180,6135,8120,9108,1090,1272,1560,1854,2045,2440,2736,30
What is a number called that has an odd number of factor pairs?
A square number has an odd number of factors, but a number with an odd number of factor pairs is nothing special.
How is the list of factor pairs related to the rectangles that could be made to show 588?
Number of factor pairs = number of rectangles
What number is less than 20 and has three factor pairs and if you add the factor pairs together you will get 1911 and 9?
The number 18.
What is a number less than 20 with three factor pairs?
12 and 18 have three factor pairs.
How many factor pairs does the number 76 have?
76 has 3 factor pairs: (1,76), (2,38), (4,19).
Number less than 20 with 3 factor pairs?
12 and 18 have three factor pairs.
What is the last sixth number of factor pairs of 16?
The factor pairs of 16 are (16,1)(8,2)(4,4)
How many factor pairs does 91 have?
One pair: it's a prime number.
What number has the most factor pairs?
Unless you specify a range, numbers keep on going. Theoretically, infinity has an infinite number of factor pairs.
Is the number 60 a factor pair?
The only single things that can be pairs are pants, scissors and glasses. The number 60 can be broken down into factor pairs, but is not a factor pair by itself.
