163

This number is a prime.

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Conjectured to be the largest prime that can be represented uniquely as the sum of three squares (1^2 + 9^2 + 9^2). Note that squares are allowed to be zero. [Noe]

Submitted: 2008-12-28 17:30:32;   Last Modified: 2008-12-28 22:13:44.
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