16001681
This number is a prime.
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Only emirp formed from concatenation of n consecutive
4-digit square numbers (n=2). It is also the smallest prime
formed from concatenation of n consecutive 4-digit square
numbers (n=2). [Gupta]
Submitted: 2020-07-09 08:42:43; Last Modified: 2020-07-09 14:44:30.
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