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FACTOR(6)		       BSD Games Manual			     FACTOR(6)

     factor, primes -- factor a	number,	generate primes

     factor [-h] [number ...]
     primes [-h] [start	[stop]]

     The factor	utility	will factor positive integers.	When a number is fac-
     tored, it is printed, followed by a `:', and the list of factors on a
     single line.  Factors are listed in ascending order, and are preceded by
     a space.  If a factor divides a value more	than once, it will be printed
     more than once.

     When factor is invoked with one or	more arguments,	each argument will be

     When factor is invoked with no arguments, factor reads numbers, one per
     line, from	standard input,	until end of file or error.  Leading white-
     space and empty lines are ignored.	 Numbers may be	preceded by a single
     `+'.  Numbers are terminated by a non-digit character (such as a new-
     line).  After a number is read, it	is factored.

     The primes	utility	prints primes in ascending order, one per line,	start-
     ing 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 the maximum.  The	default	and maximum 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 the	maximum.  The start value may
     be	preceded by a single `+'.  The start value is terminated by a non-
     digit character (such as a	newline).

     negative numbers aren't permitted
     illegal numeric format
     start value must be less than stop	value
     Result too	large

     factor cannot handle the "10 most wanted" factor list, primes will	not
     get you a world record.

BSD			       October 10, 2002				   BSD


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