5555
This number is a composite.
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The 2nd repdigit number consisting of 5’s whose the product
with all its truncations plus 2 is prime, i.e.,
5555*555*55*5+2=847831877. The previous such prime is
55*5+2=277 and the next is 55555555*5555555*…*5+2. [Loungrides]
Submitted: 2018-11-02 14:28:52; Last Modified: 2018-12-10 20:45:24.
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