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=15
15 is a composite number because it has more than 2 factors
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. 15 is composite.
no it is composite
15 is a composite number. 11 is a prime number.
composite because 3 and 5 will go into it
A composite number is a number that has smaller factors (excluding 1). A prime number is one that doesn't (1 is not considered prime nor composite, because of its special role in multiplication).Since 15 is divisible by 3, it is composite.
31 and 61 are prime, the rest composite.
15 is composite.
2 is a prime number and 15 is a composite number.
47 is a prime, the other two are composite.
composite
Composite.
3 is prime 15 is composite
prime
no it is composite
84/15=5.6 5.6 is not an integer, so it can't be prime or composite.
15 is a composite number. 11 is a prime number.
composite because 3 and 5 will go into it
Composite