To find the Greatest Common Factor (GCF) of the expression \(15q + 6\), we need to identify the GCF of the numerical coefficients of the terms.
The coefficients are:
- For \(15q\), the coefficient is \(15\).
- For \(6\), the coefficient is \(6\).
Next, we find the GCF of \(15\) and \(6\).
The factors of \(15\) are:
- \(1, 3, 5, 15\)
The factors of \(6\) are:
- \(1, 2, 3, 6\)
The common factors of \(15\) and \(6\) are:
- \(1\) and \(3\)
The greatest of these common factors is \(3\).
Therefore, the GCF of the expression \(15q + 6\) is 3.