653061224489795918369

This number is a prime.

                                                     6 5306122448 9795918369

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A prime p such that the p^2 decimal expression contains two concatenated successive integers, p^2=a and(a+1): 426488962932111620160 and 426488962932111620161. Found by J. C. Rosa, 2004. [Rivera]

Submitted: 2018-09-20 16:46:46;   Last Modified: 2018-12-26 14:05:19.
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