NAME

     primes — generate primes

SYNOPSIS

     primes [-dh] [start [stop]]

DESCRIPTION

     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.

DIAGNOSTICS

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

AUTHORS

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

BUGS

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