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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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15y ago
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9y ago

That's not always true.

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Q: Why is there an even number of factor pairs?
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Can you stop checking for factor pairs when you find a pair that repeats?

No, you should continue checking for factor pairs even if you find a pair that repeats. A repeating pair indicates that the number is not a prime number, but there may be other factor pairs that have not been identified yet. It is important to exhaust all possible factor pairs to ensure that all factors of the number are identified accurately.


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


Can a number have more than 4 factor pairs?

Oh, absolutely! Just like when we add a touch of titanium white to brighten up a painting, numbers can have many factor pairs beyond just four. Some numbers, like 12, can have even more factor pairs, creating a beautiful mathematical landscape full of possibilities. Just remember, every number is unique and special in its own way.


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.


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 a number less than 20 with three 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.