<P> Graham 's number is a `` power tower '' of the form 3 ↑ ↑ n ( with a very large value of n ) , so its rightmost decimal digits must satisfy certain properties common to all such towers . One of these properties is that all such towers of height greater than d ( say ) , have the same sequence of d rightmost decimal digits . This is a special case of a more general property : The d rightmost decimal digits of all such towers of height greater than d + 2 , are independent of the topmost `` 3 '' in the tower ; i.e. , the topmost `` 3 '' can be changed to any other non-negative integer without affecting the d rightmost digits . </P>
<P> Graham 's number is a `` power tower '' of the form 3 ↑ ↑ n ( with a very large value of n ) , so its rightmost decimal digits must satisfy certain properties common to all such towers . One of these properties is that all such towers of height greater than d ( say ) , have the same sequence of d rightmost decimal digits . This is a special case of a more general property : The d rightmost decimal digits of all such towers of height greater than d + 2 , are independent of the topmost `` 3 '' in the tower ; i.e. , the topmost `` 3 '' can be changed to any other non-negative integer without affecting the d rightmost digits . </P>
what is the value of graham 's number
what is the value of graham 's number
n
n