Hi Guys,

What i am trying to do is to to determine the common material that is
used among different model od product in a product family. I have the
column C the various part number for the product family. Each product
model is made up of different combination of the parts.

In I3:U3 i have the model number for each product. Under each are the
combination of various part that make up each model. What i need to do
is in column G conditional formatiing that if all the different model
use a particular part (part number). The respective cell in column in
the row will be color. This will help me to determine what are the
parts that are common to all the product. Pls see below. Many thanks.

Column C Column G Column I .........................Column U
Part no Common Product 1 Product 2 Product 3 Product 4
12-1234-56 no color 1 4 0 6
13-2345-45 color 2 3 2 2
14-1234-56 no color 0 2 4 2
14-1234-56 no color 0 2 2 2