ⓘ 593 (number)

                                     

ⓘ 593 (number)

593 is an odd number. It is a prime number, an example of what Paul Erdos and Ernst G. Straus called a Good prime, or a prime whose square is greater than the product of its neighboring two primes. As such it is part of sequence A028388 at the On-Line Encyclopedia of Integer Sequences. Justin Smith calls 593 a right prime because it remains prime after dropping any number of digits from the right: 593, 59, and 5 are all prime. It is a Sophie Germain prime, the sum of seven consecutive primes 71 + 73 + 79 + 83 + 89 + 97 + 101, the sum of nine consecutive primes 47 + 53 + 59 + 61 + 67 + 71 + 73 + 79 + 83, and an Eisenstein prime with no imaginary part.

593 also notable for the fact that the amount of 9 2 9 thus, a Leyland number.