83

This number is a prime.

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The number of permutations of the 10 distinct digits taken 9 at a time that are perfect squares. These range from 101242 = 102495376 to 303842 = 923187456. [Beiler]

Submitted: 1999-09-02 18:40:00;   Last Modified: 2008-07-31 08:54:33.
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