This number is a prime.
Single Curio View: (Seek other curios for this number)The largest 4-digit distinct-digit prime whose sum of the repdigit numbers of its digits, self-repeated, is an emirp, i.e., 999999999+333+4444+1 = 1000004777. [Loungrides]
Submitted: 2017-10-21 09:09:49; Last Modified: 2020-07-25 18:37:34.
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