A composite number is a positive integer that has at least one positive divisor other than one and itself. Among the given options:
- 69: Composite (divisible by 1, 3, 23, and 69)
- 29: Prime (only divisible by 1 and 29)
- 89: Prime (only divisible by 1 and 89)
- 59: Prime (only divisible by 1 and 59)
The composite number is 69.