Question

What are prime numbers give example?

Answer 1

The prime numbers

Prime numbers are numbers with only two factors, $1$ and the number itself.

Example:

$5$ and $19$ are prime numbers with the following factors:

$$\begin{gathered} 5:1,5 \\ 19:1,19 \end{gathered}$$

Whereas,

$8$ and$15$ non-prime is the composite number with the following factors:

$$\begin{gathered} 8:1,2,4,8 \\ 15:1,3,5,15 \end{gathered}$$

Hence, Prime numbers are numbers with only two factors, $1$ and the number itself.