MMO 124 Moscow MO 1947 one relative prime in 4 of 5 consecutive
Source:
July 20, 2019
number theoryrelatively primeconsecutivecombinatorics
Problem Statement
a) Prove that of consecutive positive integers one that is relatively prime with the other can always be selected.b) Prove that of consecutive positive integers one that is relatively prime with the other can always be selected.