Factor them. Prime numbers have two factors, composite numbers have more than two.
A number is prime when it only has one and itself as factors is prime. Therefore, to tell if a number is prime or composite simply find it's factors. If it has more than two factors than it is not a prime number, it is composite.
prime numbers
To find a composite number, check if the number can be divided by 2,3,4,5, ect. If it can, it`s composite. If not, it`s prime.
1155 is obviously a multiple of 5 and a multiple of 11, so it is a composite number.
It is not a prime number, it is a composite number.
It is prime
A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
86 is not a prime number, so is a composite.
It is a Prime number, and therefore not a composite number.211 is a prime number.
No 168 is not a prime number it is a composite number
The number is not COMPOSITE. Instead, it is a prime number.
A prime number has two factors, a composite number has more than two.