Multiple choice general knowledge math & puzzles

last digit in 2 power 18 is

  1. 2

  2. 4

  3. 6

  4. 8
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B Correct answer
Explanation

The last digit of powers of 2 follows a repeating cycle of 4: 2, 4, 8, 6. For 2^18, we find the position in the cycle: 18 ÷ 4 = 4 remainder 2, so it corresponds to the second position in the cycle, which is 4. Therefore, 2^18 ends in 4.

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