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VTMO 2020 — Grade 5 — vtmo Question 1

VTMO · VTMO 2020 — Grade 5 — vtmo

Question 1

Find the sum of the last six digits of $1 \times 2 \times 3 \times \ldots \times 25$.
  1. $0$
  2. $12$
  3. $16$
  4. $20$
  5. $10$