NAME

factor, primes − factor a number, generate large primes

SYNOPSIS

/usr/games/factor [ number ]

/usr/games/primes [ number ]

DESCRIPTION

factor reads lines from its standard input.  If it reads a positive number, factor will factor the number and print its prime factors, printing each one the proper number of times.  factor exits when it reads zero, a negative number, or something other than a number.  If a number is given, factor will factor the number, print its prime factors, and exit. 

primes reads a number from the standard input and prints all primes larger than the given number and smaller than 232 (about 4.3×109).  If a number is given, primes will use that number rather than reading one from the standard input. 

DIAGNOSTICS

Ouch. 
Input out of range or for garbage input.

Solbourne Computer, Inc.  —  16 February 1988