Problem #8

What are the last four digits of

                       1998  
                     .       
                   .         
                 .            
             1998
         1998
     1998

where "1998" appears 1998 times?

[Recall that iterated exponents are computed from "top to bottom". For example:

              
               3  
              3 
             3

is equal to 3^(3^3)=3^27.]

Back to the Archives

---

Back to the Math Department Homepage.

---