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SEAMO 2021 — Paper E — Grade 9–10 Question 8

SEAMO · SEAMO 2021 — Paper E — Grade 9–10

Question 8

Find the least positive integer $n$ for which $n/5$ is a perfect square, $n/2$ is a perfect cube, and $27\mid n$.
  1. $145800$
  2. $1458000$
  3. $243000$
  4. $2430000$
  5. None of the above