Composite.
15 is composite.
2 is a prime number and 15 is a composite number.
The first prime number that is odd is 3, so the second odd prime number is 5. Some think 1 is the first prime nunber, but 1 is neither prime nor composite.
Composite
15 is a composite number - it is the product of 3 and 5. (3*5=15)
91 is a Composite Number.
15 is composite.
2 is a prime number and 15 is a composite number.
47 is a prime, the other two are composite.
NO. 400 is not prime.400 is a composite number because it is even so definitely it has other factors aside from 1 and itself which is 2.
composite
3 is prime 15 is composite
15 is a composite number because it has more than two factors. Its factors are 1, 3, 5, and 15.15 is a composite number as it is divisible by 1, 3, 5 and 15.composite. 3*5=1515 is a composite number because it has more than 2 factors
prime
no it is composite
No
The first prime number that is odd is 3, so the second odd prime number is 5. Some think 1 is the first prime nunber, but 1 is neither prime nor composite.