MathDB
Vietnam NMO 2000_3

Source:

October 26, 2008
algebrapolynomialnumber theory unsolvednumber theory

Problem Statement

Consider the polynomial P(x) \equal{} x^3 \plus{} 153x^2 \minus{} 111x \plus{} 38. (a) Prove that there are at least nine integers a a in the interval [1,32000] [1, 3^{2000}] for which P(a) P(a) is divisible by 32000 3^{2000}. (b) Find the number of integers a a in [1,32000] [1, 3^{2000}] with the property from (a).