Posts Tagged ‘ Mathematics Olympiads ’

Le Monde puzzle [#809]

February 21, 2013
By
Le Monde puzzle [#809]

Another number theory puzzle, completed in the plane to Hamburg: Integers n are called noble if they can be decomposed as a sum n=a+b+… of distinct integers such that 1/a+1/b+…=1. They are called bourgeois if they are not noble but can be decomposed as a sum n=a+b+… of integers, some of them identical, such that [...]

Read more »


Subscribe

Email:

  Subscribe