Problems based on Numbers Test 4

Question : 38 of 40

Marks: +1, -0

The unit digit of

(2002)^2002

is:

Solution:

The unit digit of

(2002)^2002

is
Unit digit

2^1=1

2^2=4

2^3=8

2^4=16

2^5=32

So, the unit digit of

(2002)^{500 × 4} × (2002)^2

is 4.

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