Question

The number of bijective functions from a set $A$ to itself when $A$ contains $106$ elements is.

• A. $106$
• B. $(106{)}^2$
• C. $\left(106\right)$!
• D. $2106$

Answer 1

The correct option is C $\left(106\right)$!

The total number of bijective functions from set $A$ containing $106$ elements to itself is $\left(106\right)!$