This number is a prime.
Single Curio View: (Seek other curios for this number)The first exotic differentiable structure was a 7-dimensional hypersphere. It was found by Milnor (1956) using the calculus of octonions. [Poo Sung]
Submitted: 2004-02-12 11:19:03; Last Modified: 2008-01-30 11:28:00.
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