Q:
# Is 15 a Prime Number?

Fifteen is not a prime number. A prime number is a positive number that has only two possible divisors, 1 and itself. Fifteen can be divided by 3 and 5 as well as 1 and itself.

Continue ReadingFifteen is a composite number. Composite numbers are positive, natural numbers that have at least one other number that divides into it besides itself and 1. An example of a prime number is 2. This number does not have any other divisors besides 1 and itself. Some other prime numbers are 5, 7 and 11.

Defining whether a number is prime or not is known as the property of primality.

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Q:
## What Is the Prime Factorization of 72?

A: The prime factorization of 72 is 23x 32, or 2 x 2 x 2 x 3 x 3. The prime factorization of a number involves determining the factors of a number that are al... Full Answer >Filed Under: -
Q:
## Is Five a Prime Number?

A: Five is a prime number. A prime number is a number which only has two factors. Those two factors are one and the number itself. Full Answer >Filed Under: -
Q:
## Is Three a Prime Number?

A: The number 3 is a prime number. A prime number is a positive number that can only be divided evenly by the number 1 and itself. Full Answer >Filed Under: -
Q:
## Is Two a Prime Number?

A: Two is a prime number. Two is the smallest prime number and the only even prime number, since all other even numbers divide by two. Full Answer >Filed Under: