Please show me how to exactly enter this in R studio for the new "fact" function.

Write a new function called $$fact$$ in R which computes the

factorial of a positive integer. The factorial function is defined as

follows:

x$!=1*2*3**$ x$,$ where x is a positive integer.

For example, $3!=1*2*3=6.$

You may use a $$while$$ loop when coding the function