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MathNet 2006 — Part 03 Question 41

Math Olympiad Vault · MathNet 2006 — Part 03

Question 41

Let $n=9867$. If you were to calculate $n^{3}-n^{2}$, you would find a number whose units digit is:

A) 0

B) 2

C) 4

D) 6

E) 8