MathDB

64

Part of 1988 IMO Longlists

Problems(1)

x^2 - 10*x - 22

Source: IMO LongList 1988, South Korea 3, Problem 64 of ILL

11/3/2005
Find all positive integers xx such that the product of all digits of xx is given by x2−10⋅x−22.x^2 - 10 \cdot x - 22.
inequalitiesnumber theory unsolvednumber theory