my mommy and daddy cant explain

explain what is wrong with the reasoning number 5 is a composite number because it has the factors 2 and 2.5

i know its a prime number but i cant explain the answer to the question above.

A Prime Number can be divided evenly only by 1, or itself.

And it must be a whole number greater than 1.

http://www.mathsisfun.com/definitions/prime-number.html

why is it not a composite number

It's not a composite number because it's a prime number.

Study this site.

http://www.mathsisfun.com/definitions/composite-number.html

Mommy and Daddy?

The reasoning provided in the question is incorrect. Let's break it down:

A composite number is a number that has more than two factors. In other words, a composite number can be divided evenly by at least one other number besides 1 and itself.

Now, let's consider the number 5. It has only two factors: 1 and 5. Since it does not have any other factors, it cannot be divided evenly by any number other than 1 and 5. Therefore, by definition, 5 is a prime number, not a composite number.

To determine if a number is prime or composite, you need to find all of its factors. In the case of 5, you can check if it is divisible by any numbers between 2 and the square root of 5 (which is approximately 2.24). In this case, none of the numbers between 2 and 2.24 divide 5 evenly, so we conclude that 5 is prime.

I hope this explanation helps you understand why the reasoning provided in the question is incorrect and why 5 is actually considered a prime number.