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This number is a composite.
Single Curio View: (Seek other curios for this number)The smallest number n (a composite number) such that 10^n-n^10 is a prime. The next such number, also composite, is 399. [Loungrides]
Submitted: 2012-02-23 14:25:22; Last Modified: 2020-06-04 21:33:55.
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