The area of two rectangles are .

The two rectangles have same width.

Find the GCF of .

Monomials in factored form:

Factor each number, and write all powers of variables as products.

In above factorization forms of both monomials, the common prime factors represented by the circle as follows:

The product of common prime factors of the monomial is called their greatest common factor(GCF).

The GCF of is .So, the width of the rectangle is 1 inches.

Since , the length of the two rectangles are .

The greatest value of their widths is 1 inches.