22 and 33 can be eliminated because 22 is divisible by 2 and 33 is divisible by 3. We know from the multiplication that we learned that 3 x 9 = 27, so 29 is the prime number.
27 is not a prime number.
29 is the next prime number after 27. But 27 is not a prime! 3 x 9 = 27!
The numbers 13 and 29 are prime - the one composite number in that list is 27.
29 is prime.
The answer is 29.
29
27
27
27
29
29