11 is a prime and contains no composite numbers.
1331 is a composite number. It is equal to 11 x 11 x 11, or 113.
15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.
None of the numbers 7, 11, and 13 are composite numbers; they are all primes.
15 is a composite number. 11 is a prime number.
1155 is obviously a multiple of 5 and a multiple of 11, so it is a composite number.
1573 is not prime. 1573 = 11 * 11 * 13. Thus, it is a composite number.
11 is prime.
11 is prime.
121 is a composite number. It is divisible by 1, 11, and 121.
no its a prime number
45, 33 and 27 are composite numbers. 11 is a prime number.
The number 121 is a composite number, since it is divisible by 11.