There are infinitely many odd numbers that are prime. Take any set of odd numbers greater than 1. Their product will be odd and, by definition, it will be composite.
For example, 3*5*13 = 195.
No, if you think that you have it, you can always find one that is larger. Take, for example you find an even composite number (all even numbers, except 2 - which is the only even prime, are composite). Call this number N. Now add 2 to N for N+2, which is also even, so it is also a composite. What about odd composites: if you find an odd composite(M), then add 1 to it: odd+odd=even, so M+1 is even, which is also composite. You can keep going forever.
21 is an odd composite number
35 is an odd composite number
Yes
It is a composite odd number
It is impossible to list the infinite number of composite odd numbers.
81 is an odd composite number.
19 is the tenth odd number, And is not a composite number or even number.
29 is odd and prime.
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