1117

This number is a prime.

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The smallest square prime. (A square prime is a prime of n² digits (n > 1) arranged left-right, top-down in a n-by-n matrix, where the rows and columns are also prime in each direction.) [Croll]

Submitted: 2002-02-05 13:04:48; Last Modified: 2009-03-21 14:41:02.