347

Number
$347$ (three hundred and forty-seven) is:


 * The $69$th prime number


 * The $1$st of the $21$st pair of twin primes, with $349$.


 * The larger of the $5$th pair of primes whose prime gap is $10$:
 * $347 - 337 = 10$


 * The upper end of the $6$th record-breaking gap between twin primes:
 * $347 - 313 = 34$