7313711101

This number is a prime.

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The largest number that is a concatenation of all the multi-digit prime factors of any 8-digit rep-digit number is prime, i,e., 11, 73, 101, 137. [Loungrides]

Submitted: 2014-12-15 12:00:01; Last Modified: 2018-09-17 13:07:45.