To determine whether the product of \( \sqrt{49} \) and \( 13 \) is rational or irrational, we notice that:
- \( \sqrt{49} = 7 \), which is a rational number (since it can be expressed as the fraction \( \frac{7}{1} \)).
- \( 13 \) is also a rational number.
The product of two rational numbers is always a rational number. Therefore, the product of \( \sqrt{49} \) and \( 13 \) will be rational.
So, the answer is 1 (for rational).