FACTOR(1)			 HP-UX 5.0		     FACTOR(1)

     NAME
	  factor, primes - factor a number, generate large primes

     SYNOPSIS
	  factor [ number ]

	  primes [ start [ stop ] ]

     HP-UX COMPATIBILITY
	  Level:    HP-UX/STANDARD

	  Origin:   System V

     DESCRIPTION
	  When factor is invoked without an argument, it waits	for  a
	  number to be typed in.  If you type in a positive number, it
	  factors the number and prints its prime factors; each one is
	  printed  the	proper	number	of  times.   Then it waits for
	  another number.  It exits if it encounters  a	 zero  or  any
	  non-numeric character.

	  If factor is invoked with an argument, it factors the number
	  as above and then exits.

	  Maximum time to factor is proportional to sqrt(n) and occurs
	  when n is prime or the square of a prime.

	  The largest number that can  be  dealt  with	by  factor  is
	  1.0e14.

	  Primes prints prime numbers between a lower and upper bound.
	  If primes is invoked without any arguments, it waits for two
	  numbers to be typed in.  The first number is interpreted  as
	  the  lower  bound,  and  the second as the upper bound.  All
	  prime numbers in the resulting inclusive range are printed.

	  If start is specified, all primes greater than or  equal  to
	  start	 are  printed.	If both start and stop are given, then
	  all primes occurring in the inclusive range "start  -	 stop"
	  are printed.

	  Start and stop values must be integers represented  as  long
	  integers.

	  If the stop value is omitted in  either  case,  primes  runs
	  until	 either	 overflow  occurs  or  it is stopped by typing
	  interrupt.

	  The largest number that can  be  dealt  with	by  primes  is
	  2,147,483,647.

     DIAGNOSTICS
	  ``Ouch'' when the input is out of range, for garbage	input,
	  or when start is greater than stop.