This number is a prime.

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The smallest 4-digit prime whose the 4th power begins with four identical digits, i.e., 4273^4=333373881243841. Note that R(4273^4) is prime. [Loungrides]

Submitted: 2015-04-20 09:59:44;   Last Modified: 2018-05-19 20:59:03.
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