FACTOR(1)							     FACTOR(1)

NAME    [Toc]    [Back]

     factor - obtain the prime factors of a number

SYNOPSIS    [Toc]    [Back]

     factor [ integer ]

DESCRIPTION    [Toc]    [Back]

     When you use factor without an argument, it waits for you to give it an
     integer.  After you give it a positive integer less than or equal to 10
     to	the 14th (1.0e14), it factors the integer, prints its prime factors
     the proper	number of times, and then waits	for another integer.  factor
     exits if it encounters a zero or any non-numeric character.

     If	you invoke factor with an argument, it factors the integer as
     described above, and then it exits.

     The maximum time to factor	an integer is proportional to sqrt(n), factor
     will take this time when n	is prime or the	square of a prime.

DIAGNOSTICS    [Toc]    [Back]

     factor prints the error message, "Ouch," for input	out of range.  factor
     prints the	error message ``Q: undefined variable''	for garbage input.


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