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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.
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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.
