9227

This number is a prime.

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The smallest Yarborough emirp that yields another Yarborough emirp when each of its digit is replaced by its cube, i.e., (9^3:2^3:2^3:7^3 -> 72988343). [Bajpai]

Submitted: 2018-02-13 21:19:25; Last Modified: 2019-01-17 15:03:15.