94371217349

This number is a prime.

                                                                9 4371217349

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The largest palindromic prime with the least length formed from all the positive digits that are expressible as sum of two triangular numbers in exactly one way. [Loungrides]

Submitted: 2017-05-04 19:22:54;   Last Modified: 2017-07-21 15:26:55.
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