Three hexagons [Trois hexagones ]

Three hexagons [Trois hexagones].




See the 28 points used:

Three hexagons defining 28 different points (13 vertices plus 15 'middle' points, for 9 prime -green- and 19 non prime numbers -red-)

See a related mysterious problem:

Three hexagons and the twenty-eight first strictly positive integer numbers -nine of them being prime numbers-


(CMAP28 WWW site: this page was created on 01/23/2017 and last updated on 06/04/2026 22:36:21 -CEST-)



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