9 = 3 x 3
Odd numbers lower than 9 (3, 5, 7) are prime numbers.
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A composite number is a number with more than 2 positive integer factors. The smallest such odd number is 9.
9 is the smallest natural number that is odd and composite: 9=3*3. 15 is the smallest natural number that is odd and a product of two numbers different from one and from each other: 15=3*5.
The smallest odd number is 1.
3 is the smallest odd prime number.
It is impossible to list the infinite number of composite odd numbers.