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MathNet 2026 — Part 05 Question 67

Math Olympiad Vault · MathNet 2026 — Part 05

Question 67

The integer $N$ has eight positive divisors $1 = d_1 \lt d_2 \lt d_3 \lt \dots \lt d_8 = N$. Find the two smallest integers $N$ for which $2d_2d_5 = d_3d_4 + 3$.