+0  
 
0
400
3
avatar+96 

Find the last two digits of \(9^{8^7}\)

 Oct 21, 2021
 #1
avatar
+1

By Euler's Theorem, $9^{8^7} \equiv 27 \pmod{100}$.

 Oct 22, 2021
 #2
avatar
+1

(9^8^7) mod 10^10 ==1626926081 - these are the last 10 digits.

 Oct 22, 2021
 #3
avatar+96 
0

Thank you so much!!

 Oct 22, 2021

3 Online Users