Objectives
of This Unit Home
. Identify Factors
. Determine the Greatest
Common Factor of two or more numbers.
. Determine the Greatest
Common Factor of two or more terms.
. Factor a Binomial Term
from a Polynomial
. Factor by Grouping
Identifying Factors
A factor is the product
of numbers or variables or both.
In the expression 12xy,
12, x, and y are factors. With numbers we can also say that 1,2,3,4,6
and 12 are factors of 12 since each number divdes into 12 evenly.
Since many products give 12 (1 x 12, 2 x 6, 3 x 4) we agree to write only
the prime factors which equal the number. Thus we would write
12= 2 x 2 x 3 since 2 and
3 are primes.
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