MathDB
Miklos Schweitzer 1949_3

Source:

October 2, 2008
number theory proposednumber theory

Problem Statement

Let p p be an odd prime number and a1,a2,...,ap a_1,a_2,...,a_p and b1,b2,...,bp b_1,b_2,...,b_p two arbitrary permutations of the numbers 1,2,...,p 1,2,...,p . Show that the least positive residues modulo p p of the numbers a1b1,a2b2,...,apbp a_1b_1, a_2b_2,...,a_pb_p never form a permutation of the numbers 1,2,...,p 1,2,...,p.