359

Number
$359$ (three hundred and fifty-nine) is:


 * The $72$nd prime number


 * The smaller of the $2$nd pair of primes whose prime gap is $8$:
 * $367 - 359 = 8$


 * The $3$rd term after $89, 179$ of the smallest sequence of $6$ primes formed by doubling and adding one:
 * $\left({89, 179, 359, 719, 1439, 2879}\right)$


 * The $21$st Sophie Germain prime after $2, 3, 5, 11, 23, 29, 41, 53, 83, 89, 113, 131, 173, 179, 191, 233, 239, 251, 281, 293$:
 * $2 \times 359 + 1 = 719$, which is prime.