Question

A = { x : x is neither prime nor composite x > 4}


classify into finite , infinite or empty set ​

Answer 1

Answer:

It is an empty set as the numbers greater than zero are either prime or composite and also the reason can be :-

1 is the only number which is neither a prime nor composite number,which is not there as x>4 I.e it contains {5,6,7...} and hence it is an empty set.