Can many netizens prove a mathematical proposition: an odd number greater than 9 is prime if it can't be divided by any one of 3, 5, 7, 9

Can many netizens prove a mathematical proposition: an odd number greater than 9 is prime if it can't be divided by any one of 3, 5, 7, 9

This is an obvious pseudo proposition, which confuses the concept of prime number. Prime number is also called prime number. It refers to a natural number greater than 1, which can not be divided by other natural numbers except 1 and the integer itself. In other words, a natural number with only two positive factors (1 and itself) is a prime number