These 24 integers have the following properties:
- 4 are primes.
- 7 are the products of two different odd primes.
- 1 is the square of a prime.
- 8 are divisible by 2 but not by 4.
- 2 are divisible by 4 but not by 8.
- 1 is divisible by 8 but not by 16
- 1 is divisible by 16.