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IMAS 2017 — Junior — Round 1 Question 6

IMAS · IMAS 2017 — Junior — Round 1

Question 6

What is the sum of all the prime divisors in the final result of $2^3+0^3+1^3+7^3$ (repeated prime divisors are counted only once)?
  1. 7
  2. 12
  3. 13
  4. 16
  5. 64