613

This number is a prime.

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

+ The only 3-digit number p such that 3^p-R(p) is prime. [Loungrides]

+ Smallest prime in the first prime triple whose the terms remain prime when each digit is replaced by its cube: (613, 216127), (617, 2161343), (619, 2161729). [Loungrides]

+ The smallest prime in a set of eleven consecutive primes such that deleting the first digit we find another set of eleven distinct primes. [Loungrides]

+ The only 3-digit prime formed from the index of a prime p followed by p, i.e., the 6th prime is 13. [Loungrides]

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