number theory

Le Monde puzzle [#752]

December 8, 2011 | 0 Comments

After a loooong break, here is one Le Monde mathematical puzzle I had time to look at, prior to going to Dauphine for a Saturday morning class (in replacement of my R class this week)! The question is as follows: A set of numbers {1,…,N} is such that multiples of 4 ... [Read more...]

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