Question

aflati ultima cifra a numarului2^2018

Answer 1

U(2^2018)=?

U(2^1)=2 ]
U(2^2)=4 |
U(2^3)=8 |=》se repeta din 4 in4
U(2^3)=6 |
U(2^4)=2 ]

2018:4=54
20
---
==1
0
-----
18
16
----
=2

2018=4*54+2

U(2^4*54+2)=U(2^2)=4

Sper ca te-am ajutat!