Take the help of our Prime Number Calculator and determine whether the given 15 number is prime or composite number. Within a fraction of seconds, our free online tool gives you an output as 15 is a Composite Number as it has 1, 3, 5, 15 factors.
Ex: 52 or 96 or 47
15 is a Composite Number and can be factored by any of the following numbers.
Factors of 15 are 1, 3, 5, 15
1. How to find 15 is prime or composite?
First, find the factor that is divisible by 2 and if you find factor 1 and itself then it is a prime or else composite number.
2. What are the factors for 15?
The factors of 15 are 1, 3, 5, 15.
2. Is 15 Prime or Composite?
15 is a Composite Number as it has 1, 3, 5, 15 factors then 15 is a Composite Number.