4273

This number is a prime.

+ 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]

+ The first of eleven consecutive primes that are all Yarborough primes. [Gaydos]

(There is one curio for this number that has not yet been approved by an editor.)

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