1

This number is a unit (so is neither prime nor composite).

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Ernst Gabor Strauss (1922--1983) was said to have replied to a student's question about why 1 is not a prime: "The primes are the building bricks for arithmetic, and 1 is just not a brick!"

Submitted: 2003-07-08 14:42:05;   Last Modified: 2008-01-30 11:28:00.
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