Natural numbers (except 0) are either prime numbers or composite numbers______ (judge right or wrong)

Natural numbers (except 0) are either prime numbers or composite numbers______ (judge right or wrong)

Natural number 1 is neither prime nor composite, so it is wrong to say that natural number (except 0) is not prime or composite

For a three digit number, the number on the hundred digit is neither prime nor composite, the number on the ten digit number is both even and prime, and the number on the single digit number is odd
What's the three digit number?

For a three digit number, the number on the hundred digit is neither prime nor composite. (1) the number on the ten digit number is both even and prime (2), and the number on the one digit number is both odd and composite (9). What is the three digit number?
one hundred and twenty-nine

For a three digit number, the number on the one digit is both odd and composite, the number on the ten digit is both prime and even, and the number on the hundred digit is neither prime nor composite. The three digit number is ()

The number on a digit is both odd and composite, which is 9
The number on ten is prime and even, which is 2
The number on the hundred is neither prime nor composite, it is 1
This three digit number is 129