This number is a prime.

                                                           188908 0110806881

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The larger of only two 16-digit strobogrammatic primes that is the concatenation of a pair of invertible primes, i.e., 18890801, 10806881. [Loungrides]

Submitted: 2015-12-26 18:19:29;   Last Modified: 2018-03-08 20:27:16.
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