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+ The largest 4-digit distinct-digit prime that yields another when each digit d is repeated d times, i.e., 9999999996666663331. [Loungrides]

+ The largest 4-digit prime whose the reversal is the square of an emirp, i.e., 1369=37^2. [Loungrides]

(There are 2 curios for this number that have not yet been approved by an editor.)




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