Srikant And The Box

Srikant has got a box which can only be opened by a password. There is a number $N$ written on box. Srikant has figured out that the password is least significant $k$ digits of $N!$ after all trailing zeros are removed from $N!$ . For example, if $N=5$ and $k=2$ then password is $21$ as $5!=120$ and if we remove the trailing zero least significant two digits are $2,1$ . Similarly if $N=10$ and $k=