49081

This number is a prime.

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A Cyclops prime that is the concatenation of three square numbers: 49 = 7^2, 0 = 0^2, and 81 = 9^2. [Ruiz-Huidobro]

Submitted: 2019-11-09 12:46:27; Last Modified: 2022-02-19 20:19:50.