2341

This number is a prime.

+ Fermilab has a Deep Underground Lab looking for dark matter. It is 2341 feet underground. [McCranie]

+ The only prime containing the first four digits formed from two double-digit primes. [Silva]

+ The only prime consisting of four distinct consecutive digits that can be represented as the sum of consecutive palindromic primes, i.e., 757+787+797 = 2341. [Loungrides]

+ Concatenate (right-to-left) the 2nd, 3rd, 4th and 1st prime and you will get another prime of the same digital length containing all of the prime digits, i.e., 2753. [Loungrides]

+ The largest prime derangement of {1, 2, 3, 4}. (A derangement is a permutation in which none of the objects appear in their ordered place.) [Loungrides]

+ The only prime consisting of four successive digits that is also a concatenation of two double-digit primes, (23, 41). The other twelve primes that consist of four successive digits are: 1423, 2143, 2543, 4231, 4253, 4523, 4567, 4657, 5647, 5867, 6547 and 6857. [Loungrides]

+ There are exactly 666 fours in the first 2341 positive integers. [Gaydos]

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