64
This number is a composite.
Single Curio View: (Seek other curios for this number)
The smallest square that creates two primes if concatenated
with its previous and next squares, i.e., 6449, 6481. [Loungrides]
Submitted: 2012-05-21 14:24:31; Last Modified: 2019-11-16 19:41:33.
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