2

This number is a prime.

Just showing those entries submitted by 'Loungrides': (Click here to show all)

+ The first of only four all-Niven numbers that are primes. [Loungrides]

+ The only known prime x such that 2^x+3^x, 2^x+5^x, 2^x+7^x are all primes, i.e., 13, 29, 53. [Loungrides]

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