isi-entrance 2015 Q2

isi-entrance · India · UGB 4 marks Number Theory Properties of Integer Sequences and Digit Analysis

The last digit of $( 2004 ) ^ { 5 }$ is:
(a) 4
(b) 8
(c) 6
(d) 2

(a). As $2004 = 2000 + 4$, the last digits of $( 2004 ) ^ { 5 }$ and $4 ^ { 5 }$ are equal.

The last digit of $( 2004 ) ^ { 5 }$ is:\\
(a) 4\\
(b) 8\\
(c) 6\\
(d) 2