Thursday, December 31, 2009

First number patent

I discovered this entry in a book called Famous First Facts:
6765. Patent on a number was granted by the Patent Office to mathematician Roger Schlafly of Real Software, Soquel, CA, in 1995. The number was nearly 150 digits long. It was useful in speeding up mathematical calculations performed within the Diffie-Hellman public-key data encryption system.

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