Multiple choice general knowledge math & puzzles

3, 5, 11, 14, 17, 21

  1. 21

  2. 17

  3. 14

  4. 3
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The numbers 3, 5, 11, 17, and 21 are all odd numbers, and most are prime. 14 is the only even number in the set, making it the odd one out. While 21 is composite, 14's parity is the primary differentiator.

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