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Subjects>Math>Math & Arithmetic

What numbers are proper factors?

Updated: 9/25/2023

Wiki User

∙ 9y ago

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That means that one number is a factor of the other number, but that it's not the number itself.

For example: the factors of 9 are 1, 3, and 9.

The proper factors of 9 are 1 and 3.

Wiki User

∙ 9y ago

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Wiki User

∙ 9y ago

A proper factor of a natural number n, is any number p such that 1 < p < n and p divides n (without remainder). Clearly, n must be a composite number for it to have a proper factor.

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Continue Learning about Math & Arithmetic

What are the proper factors of 5?

Prime numbers don't have proper factors.

Is the number 9 prime?

No 9 is not prime. It's factors are 1,3,9. Proper factors: 1,3. Factors are numbers that are multiplied with other numbers to get a product. Proper factors are factors of a number except for itself. Composite numbers are numbers with more than 2 factors and more than 1 proper factor. Prime is the opposite of composite.

What are the proper factors of 13?

13 is a prime number so the only factors are 1 and itself. Prime numbers have no proper factors.

All the proper factors of 47?

47 is a prime, so its only factors are 1 and 47. Prime numbers don't have "proper" factors.

Why are no prime numbers perfect numbers?

Prime numbers have two factors. The sum of their proper divisors is always 1.

Related questions

What are proper numbers that are factors?

All numbers are factors (of their multiples).

Is 9 prime?

No 9 is not prime. It's factors are 1,3,9. Proper factors: 1,3. Factors are numbers that are multiplied with other numbers to get a product. Proper factors are factors of a number except for itself. No 9 is not prime. It's factors are 1,3,9. Proper factors: 1,3. Factors are numbers that are multiplied with other numbers to get a product. Proper factors are factors of a number except for itself. Composite numbers are numbers with more than 2 factors and more than 1 proper factor. Prime is the opposite of composite.

What are the proper factors for 7?

Prime numbers don't have proper factors.

What are the proper factors of 89?

Prime numbers don't have proper factors.

What are the proper factors for 13?

Prime numbers don't have proper factors.

Proper factors of 31?

Prime numbers don't have proper factors.

What are proper factors of 31?

Prime numbers don't have proper factors.

What are the proper factors of 5?

Prime numbers don't have proper factors.

What are the proper factors of 37?

37 is prime. Prime numbers don't have proper factors.

What are the proper factors of 23?

23 is prime. Prime numbers don't have proper factors.

What are the proper factors of the number 53?

Prime numbers, like 53, have no proper factors.

Does 23 has proper factors?

23 is prime. Prime numbers don't have proper factors.

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