Q:
# What Are Proper Factors?

**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. Usually, when factoring a number, it is desirable to report only the prime factors, or factors that are also prime numbers. The prime factorization of 20 excludes 4 and 10, because both of these numbers are divisible by 2, and 10 is also divisible by 5.

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Q:
## What Is a Cube Root Formula?

A: To find the cube root of a number, find all of the number’s prime factors. A cube root is a number that, when cubed, gives the original number. If there ar... Full Answer >Filed Under: -
Q:
## What Are the Factors of 72?

A: The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72. Factors are the numbers that can be multiplied together to get 72. Full Answer >Filed Under: -
Q:
## What Is the Prime Factorization of 42?

A: The prime factorization of 42 is 2 x 3 x 7. The prime factors of a number are numbers that are both factors and prime at the same time. Full Answer >Filed Under: -
Q:
## What Are the Factors of 48?

A: The factors of 48 include 1, 2, 3, 4, 6, 8, 12, 16, 24 and 48. The number 48 is divisible by each of the factors without any remainder being left over. Full Answer >Filed Under: