Among the numbers listed (69, 39, 29, and 49), the only prime number is 29.
To clarify:
- 69 is not prime (it is divisible by 1, 3, 23, and 69).
- 39 is not prime (it is divisible by 1, 3, 13, and 39).
- 29 is prime (it is only divisible by 1 and 29).
- 49 is not prime (it is divisible by 1, 7, and 49).
So, the prime number is 29.