989466010702279111
This number is a prime.
98946601 0702279111
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R19-19! is the largest positive number of form Rm-m! that is prime. It is the only such emirp and case where m, Rm, and Rm-m! are all primes. [Loungrides]
Submitted: 2012-04-03 18:47:21; Last Modified: 2014-08-30 15:16:45.
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