Question

Explain why 7 * 19 * 23 + 23 is a composite number

Answer 1

It has more than two factors

Explanation:

A composite number has more than two factors.

The given expression is

`7 * 19 * 23 + 23`

We can rewrite this as:

`23(7 * 19 + 1)`

We can simplify this further to get:

`23(134)`

`23 * 2 * 67`

We have shown that, the given number has more than two factors.

Hence

`7 * 19 * 23 + 23`

is a composite number.