Question:

Which of the following cannot be the unit digit of $8^n$, where $n$ is a natural number?

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Learn the unit digit cycles of powers for common numbers.
Updated On: May 20, 2025
  • 4
  • 2
  • 0
  • 6
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The Correct Option is C

Solution and Explanation

The powers of 8 cycle in their unit digits as: 8, 4, 2, 6, repeating. So the unit digit can never be 0.
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