MathDB
Indian RMO - Paper 3

Source: RMO- Problem 2

December 11, 2013
number theory unsolvednumber theory

Problem Statement

Find all 44-tuples (a,b,c,d)(a,b,c,d) of natural numbers with abca \le b \le c and a!+b!+c!=3da!+b!+c!=3^d