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SASMO 2022 Grade 8 Question 12

SASMO · SASMO 2022 Grade 8

Question 12

An integer is called beprisque if its two neighbouring integers are a perfect square and a prime number, in either order. For example, 8 is a beprisque number. How many 2-digit beprisque numbers are there?
  1. 4
  2. 5
  3. 6
  4. 9
  5. None of the above