This number is a prime.

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The starting prime of a sequence of five primes following this rule: The Kth prime is obtained from the previous one substituting each digit d by d^K: 223, 449, 6464729, 129625612962562401166561, 1325904977763231257776132590497776323125777632102401177767776312577761. [Rivera]

Submitted: 2020-06-12 11:57:54;   Last Modified: 2020-06-12 12:00:03.
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