factor(1) — DG/UX 4.30



     factor(1)                  DG/UX 4.30                   factor(1)



     NAME
          factor - factor a number

     SYNOPSIS
          factor [ number ]

     DESCRIPTION
          When factor is invoked without an argument, it waits for a
          number to be typed in.  If you type in a positive number
          less than 1014 it will factor the number and print 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.

     EXAMPLES
          $ factor 12
          12
               2
               2
               3

          The above command lists the prime factors for the number 12.

     DIAGNOSTICS
          The message "Ouch!" is displayed for input out of range or
          for garbage input.























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