2024 · Q5
What are the last three digits in the multiplication of 4321012345 × 98766789
Elementary MathematicsNumber System
- A1, 0, 5
- B2, 0, 5
- C2, 1, 5
- D3, 0, 5
Explanation
Only the last three digits matter: (4321012345 mod 1000) × (98766789 mod 1000) = 345 × 789 = 272205. The last three digits of 272205 are 2, 0, 5. This is option B.