823

This number is a prime.

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The larger of only two 3-digit primes p, such that its square p^2 is a concatenation of three double-digit primes, i.e., 823^2 = 677329. [Loungrides]

Submitted: 2019-12-12 06:47:16;   Last Modified: 2020-07-26 13:58:53.
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