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www.mathsisfun.com/definitions/proper-factor.html

Illustrated definition of Proper Factor: Any of the factors of a number, except 1 or the number itself. All positive factors of 12: 1,2,3,4,6,12 Proper...

mathworld.wolfram.com/ProperFactor.html

A proper factor of a positive integer n is a factor of n other than 1 or n (Derbyshire 2004, p. 32). For example, 2 and 3 are positive proper factors of 6, but 1 and 6 are not. Compare with the term proper divisor, which means a factor of n other than n (but including 1).

www.reference.com/math/proper-factors-2d428687f2f00ba9

Proper factors are factors of a number N that are neither N nor 1. In general, a factor of N is a whole number, or integer, that divides N without a remainder. For example, the factors of 20 are 1, 2, 4, 5, 10 and 20. The proper factors of 20 are 2, 4, 5 and 10.

study.com/academy/answer/what-are-proper-factors.html

What are proper factors? Factors and Proper Factors. To find the factors of a number, you think about what two numbers you can multiply together to get that number. For example, if you multiply 2 ...

study.com/academy/lesson/what-is-a-proper-factor-in-math.html

Proper Factors of the Number 15. To find the proper factors of the number 15, first we need to figure out all the factors of the number 15. This time, let's use multiplication to find factors.

www.answers.com/Q/What_are_proper_factors

Factors are the numbers that evenly divide into a given number. Proper factors are all the factors of the number except the number itself. Some definitions do not allow the number 1, either. If ...

www.answers.com/Q/Proper_factors_of_50

The proper factors of 50 are 2, 5, 10, and 25. A proper noun is the name or title of a specific person, place, orthing.Examples of proper nouns: .

www.superteacherworksheets.com/factors/proper-factors...

Proper Factors and Perfect Numbers Factors are the numbers you multiply to get another number. 2 x 3 = 6 2 and 3 are factors of 6. 1 x 6 = 6 1 and 6 are also factors of 6. What are the factors of 6? 1, 2, 3, and 6 Proper Factors are the factors of a number other than the number itself. What are the proper factors of 6? 1, 2, and 3

www.superteacherworksheets.com/factors/proper-factors.pdf?...

Proper Factors Factors are the numbers you multiply to get another number. ... Therefore, a prime number only has one proper factor: 1. The only proper factor of 7 is 1. a. List all of the factors for the number 9. 1, 3, 9 List all of the proper factors of 9. 1 and 3 b.

en.wikipedia.org/wiki/Proper_factors

An integer > whose only proper divisor is 1 is called a prime number. Equivalently, a prime number is a positive integer that has exactly two positive factors: 1 and itself. Any positive divisor of is a product of prime divisors of raised to some power.