Pre-muted

Number Theory Level pending

You are given that \[ \dfrac{n!}{(n-x)!} = n \]

Find \(x\).

Bonus: Can you also find one exception for the above formula?

Notation: \(!\) denotes the factorial notation. For example, \(8! = 1\times2\times3\times\cdots\times8 \).

×

Problem Loading...

Note Loading...

Set Loading...