Multiple choice

Which of the following numbers is not a prime number?

  1. 211

  2. 223

  3. 224

  4. 227

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

224 = 1 X 2 X 112 As 224 has more than two factors, so 224 is not a prime number.

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