To factor the expression \( 5m - 15 \), we can look for the greatest common factor (GCF) of the two terms.
The GCF of \( 5m \) and \( 15 \) is \( 5 \). Now, we'll factor \( 5 \) out of the expression:
\[ 5m - 15 = 5(m - 3) \]
So, the factored form of the expression is \( 5(m - 3) \).
In the response area, you can enter: (m - 3)