Which mathematical term means an integer not divisible by 2?

Question: Which mathematical term means an integer not divisible by 2?

  1. Exponent
  2. Odd number
  3. Acute angle
  4. Empty set

Correct Answer: B — Odd number

Explanation: Match the mathematical definition in the question to its precise term.
Every odd integer has remainder 1 upon division by 2.

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