4998877665544332211001

This number is a prime.

                                                    49 9887766554 4332211001

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The only prime formed by inserting between the digits of a double-digit number, the concatenation in reverse order of all the repdigit double-digit numbers 99, 88, ..., 11, 00. [Loungrides]

Submitted: 2020-02-09 02:12:12;   Last Modified: 2020-02-09 09:51:25.
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