Answer :
In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data:
prime number
Step 02:
prime numbers:
Prime numbers ===> numbers that have only 2 factors: 1 and themselves.
A prime number cannot be divided by any other positive integers without leaving a remainder, decimal or fraction.
13 has only two factors:
[tex]\begin{gathered} \frac{13}{1}\text{ = 13 } \\ \\ \frac{13}{13}=1 \end{gathered}[/tex]So it is a prime number.
4 has three factors:
[tex]\begin{gathered} \frac{4}{1}=4 \\ \\ \frac{4}{2}=2 \\ \\ \frac{4}{4}=1 \end{gathered}[/tex]So it is not a prime number.
That is the full solution.