3 and 5 are the primes
15 can be divided by 3 and 5, so it isn't a prime
3 and 5 are Prime Factors of 15 (3x5=15).
3*5 = 15 in prime numbers
The prime factors of 15 are 3 and 5.
The prime factors of 15 are: 3, 5
3 x 5 = 15, so 15 is not a prime number.
The prime factorization of 15 is 3 x 5.
The prime factorization of 15 is 3 x 5.
15 is 3 x 5, so it is not prime
The prime factors of 15 are 3 and 5 because 3 and 5 are prime numbers that divide evenly into 15. 1 is a factor of 15, but it is not a prime number.
No, it's a composite number.15 is NOT a prime number.
3 x 5 = 15
No. 15 is not a prime number because it has one or more divisors. Example 15/3=5 15/5=3