The remainder when \( \Large 3^{21} \) is divided by 5 is:


A) 1

B) 2

C) 3

D) 4

Correct Answer:
C) 3

Description for Correct answer:
\( \Large 3^{21}\div5 \)



Divede = \( \Large \frac{21}{4} \)

\( \Rightarrow \) remainder 1

\( \Large \frac{3^{1}}{5}=3 \) remainder

Part of solved Number series questions and answers : >> Aptitude >> Number series








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