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factor (1)
  • >> factor (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • factor (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
  • factor (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  •  

    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 factors 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 attributes:

    ATTRIBUTE TYPEATTRIBUTE VALUE

    AvailabilitySUNWesu

     

    SEE ALSO

    attributes(5)


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    OPERANDS
    EXIT STATUS
    DIAGNOSTICS
    ATTRIBUTES
    SEE ALSO


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