Below is the suggestion I posted in your original thread.
[You should not start a new thread to preserve continuity]
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Assume your master set of 6 numbers is in A1:F1
and your grid of numbers to be checked is in say A2:F100
Select A2
Click Format > Conditional Format
Under Condition1, make the settings:
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Formula Is: | =COUNTIF($A$1:$F$1,A2)>0
Click Format button > Patterns tab > Green? > OK
Click OK at the main dialog
Now to copy the conditional formatting .. :
With the formatted cell A2 selected,
Double-click on the Format Painter icon ("brush")
[cursor will turn into "brush"]
Click to select [i.e. "paint" over] the grid A2:F100
Press Esc to revert the cursor to normal