# How to Factor Using Divisibility Rules?

Finding the divisors of a number is necessary to determine its prime factors, or the least common multiple or greatest common factor of two numbers. However, finding the divisors of a number can be...
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http://www.ehow.com/how_8313792_factor-using-divisibility-rules.html

## How to Use the Divisibility Rules to Find the Prime Factorization of a Number?

Prime numbers have a special place in number theory. There is no formula to predict a prime number, and many appear in pairs as twin primes with a difference of two -- 3 and 5, 5 and 7, 11 and 13, ...
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http://www.ehow.com/how_8154299_use-rules-prime-factorization-number.html

## How to Factor Rules for Algebra?

In arithmetic, factoring means finding numbers that can be multiplied to produce a given number. For example, the factors of 21 are 3 and 7 because 3 X 7 = 21. In algebra, we are interested in fact...
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http://www.ehow.com/how_8259534_factor-rules-algebra.html

## How to Factor Using the GCF?

Factors are the numbers that you multiply to get another number. GCF stands for greatest common factor and is also known as the greatest common divisor. The GCF is the largest number that can be di...
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http://www.ehow.com/how_8165197_factor-using-gcf.html

## How to Factor Using Substitution?

Factoring is a process used to find the elements that go into a polynomial. A polynomial is a math expression that includes variables raised to powers. The expression x^2 + 5x + 6 is a polynomial....
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http://www.ehow.com/how_8405730_factor-using-substitution.html