This number is a composite.

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The proven prime 123447^1048576 - 123447^524288 + 1 is a 5338805-digit self number. It is the largest known non-Mersenne prime self number as of April 20th, 2019. [Kontobesar]

Submitted: 2019-04-21 07:49:22;   Last Modified: 2019-04-21 09:43:34.
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