primes — generate primes

       Originally by Landon Curt Noll, extended to some 64-bit primes by Colin Percival.

       This primes program won't get you a world record.

Debian                                          February 2, 2018                                       PRIMES(6)

       The  primes  utility  prints  primes  in  ascending  order,  one per line, starting at or above start and
       continuing until, but not including stop.  The start value must be at least 0 and not greater than  stop.
       The   stop  value  must  not  be  greater  than  3825123056546413050.   The  default  value  of  stop  is
       3825123056546413050.

       When the primes utility is invoked with no arguments, start is read from standard input and stop is taken
       to be 3825123056546413050.  The start value may be  preceded  by  a  single  ‘+’.   The  start  value  is
       terminated  by  a  non-digit  character  (such as a newline).  The input line must not be longer than 255
       characters.

       When given the -d argument, primes prints the difference between the current and the previous prime.

       When given the -h argument, primes prints the prime numbers in hexadecimal.

       Out of range or invalid input results in an appropriate error message to standard error.

       primes — generate primes

primes [-dh] [start [stop]]