MathDB

4

Part of 1996 Italy TST

Problems(1)

italy tst

Source: Italian IMO Team Selection Test 1996

5/5/2017
4.4. Prove that there exists a set X of 1996 positive integers with the following properties: (i) the elements of X are pairwise coprime; (ii) all elements of X and all sums of two or more distinct elements of X are composite numbers
combinatoricsalgebraSets