To factor the expression \( 6w - 9x \), we start by identifying the greatest common factor (GCF) of the two terms.
The GCF of \( 6w \) and \( 9x \) is 3. We can factor out 3 from the expression:
\[ 6w - 9x = 3(2w - 3x) \]
So, the factored form of \( 6w - 9x \) is:
\[ 3(2w - 3x) \]
Here, 3 is the whole number greater than 1, and \( 2w - 3x \) is the remaining expression.