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The year that Christopher Columbus returned to Spain after his first New World voyage. The largest known Stern prime, i.e., it is not the sum of a smaller prime and twice the square of a nonzero integer. These are Named after Jewish mathematician Moritz Abraham Stern (18071894). Minimal number of simplices in a triangulation of the 7dimensional cube, and the largest prime proven to be the minimal number of simplices in a triangulation of the ndimensional cube for any n. [Post]
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