Among the factor pairs of 72 that Jesse listed:
- \(2 \times 36\) - Here, 2 is a prime number.
- \(4 \times 18\) - Neither 4 nor 18 is a prime number.
- \(6 \times 12\) - Neither 6 nor 12 is a prime number.
- \(8 \times 9\) - Neither 8 nor 9 is a prime number.
Therefore, the factor pair \(2 \times 36\) includes a prime number (which is 2).