Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2024-part-05 — 168 problems (EN–VI) Question 46

Math Olympiad Vault · MathNet 2024-part-05 — 168 problems (EN–VI)

Question 46

A natural number $x$, when expressed in decimal notation, has the product of its digits equal to $x^2 - 15x - 27$. Find all possible $x$.