This number is a prime.

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The smallest of three non-titanic primes that can be represented as the product of a repdigit number consisting of 5's and all its truncations plus 2, i.e., 55*5+2 = 277. [Loungrides]

Submitted: 2018-07-18 03:41:43;   Last Modified: 2018-12-30 14:39:55.
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