factor

 

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 User Commands                                           factor(1)
 
 
 


NAME
      factor - obtain the prime factors of a number
 


SYNOPSIS
      factor [ integer ]
 


DESCRIPTION
      factor writes to standard input all prime  factors  for  any
      positive  integer  less  than  or equal to 10**14. The prime
      factors are written the proper number of times.
 
      If factor is used without  an  argument,  it  waits  for  an
      integer  to  be entered. After entry of the integer, it fac-
      tors it, writes its  prime  factors  the  proper  number  of
      times, and then waits for another integer. factor exits if a
      0 or any non-numeric character is entered.
 
      If factor is invoked with an argument (integer),  it  writes
      the  integer, factors it and writes all the prime factors as
      described above, and then exits. If the  argument  is  0  or
      non-numeric, factor writes a 0 and then exits.
 
      The maximum time to factor an  integer  is  proportional  to
      sqrt(n),  where  n  is  the integer which is entered. factor
      will take this time when n is  prime  or  the  square  of  a
      prime.
 


OPERANDS
      integer
            Any positive integer less than or equal to 10**14.
 
 EXIT STATUS
      0     Successful completion.
 
      1     An error occurred.
 


DIAGNOSTICS
      factor prints the error message Ouch! for input out of range
      or for garbage input.
 


ATTRIBUTES
      See attributes(5) for descriptions of the  following  attri-
      butes:
 
      ____________________________________________________________
     |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
     |_____________________________|_____________________________|
     | Availability                | SUNWesu                     |
     |_____________________________|_____________________________|
 
 
 
 
 
 
 SunOS 5.8           Last change: 31 Jan 1996                    1
 
 
 
 
 
 
 User Commands                                           factor(1)
 
 
 


SEE ALSO
      attributes(5)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 SunOS 5.8           Last change: 31 Jan 1996                    2
 
 
 

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