Seventeen is the next Prime number after fifteen.
15 is a factor of 45, but it is not a prime number.
2 is a prime number and 15 is a composite number.
3 and 5 are Prime Factors of 15 (3x5=15).
5 is but 15 is not a prime number
3 x 5 = 15, so 15 is not a prime number.
3*5 = 15 in prime numbers
15 is a factor of 45, but it is not a prime number.
2 is a prime number and 15 is a composite number.
3 and 5 are Prime Factors of 15 (3x5=15).
Number 17 is but 15 isn't as 5x3 isn't a prime number
5 is but 15 is not a prime number
3 x 5 = 15, so 15 is not a prime number.
No, it's a composite number.15 is NOT a prime number.
The prime factors of 15 are: 3, 5
A number is prime if it has only 1 and itself as factors. For example, 7 is a prime number because it has only 1 and 7 as factors. 15 isn't a prime number because it has 1, 3, 5, and 15 as factors.
15 is a composite number. 11 is a prime number.
To find the factors of a number, you first need to split that number into its prime factors. In the case of 15, this produces: 15 = 3x5 The next step is to note that every factor of the number (apart from 1) is the product of any combination of its prime factors. Thus, the factors of 15 are: 1, 3, 5 and 15.