Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2009-part-01 — 175 problems (EN–VI) Question 117

Math Olympiad Vault · MathNet 2009-part-01 — 175 problems (EN–VI)

Question 117

Suppose that $k$, $l$ are two positive integers.
Prove that:
There are infinitely many positive integers $m \ge k$ such that $\binom{m}{k}$ and $l$ are relatively prime.