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                                                                factor(1)



        _________________________________________________________________
        factor                                                    Command
        factor a number
        _________________________________________________________________


        SYNTAX

        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

        "Ouch" for input out of range or for garbage input.









        DG/UX 4.00                                                 Page 1
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