389

This number is a prime.

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

The smallest emirp equal the sum of the first two dozen consecutive idoneal numbers. [Loungrides]

The smallest prime (emirp) whose sum of digits is an abundant number. [Loungrides]

The only 3-digit Hyper-Cullen 2nd species prime (emirp), i.e., a prime of form n*2^n+(n-1), case n=6. [Loungrides]

The only prime (emirp) having 89 as a two-digit ending among the 3-digit primes. [Loungrides]