Question

Is -7 a natural number

Answer 1

Natural numbers are intergers that are greater than zero. such as 1,2,3,4,5 etc.

`\begin{gathered} \N\text{ = }\left\lbrace \text{interger }>0\}\right? \\ \N\text{ = }\left\lbrace \text{1,2,3,4,}..\}\right? \end{gathered}`

For the number given which is -7,

-7 is an interger but it is not a natural number because it is less than zero.

`-7\text{ }<0`

Therefore, -7 is not a Natural number