FACTOR(1plan9) FACTOR(1plan9)
NAME
factor, primes - factor a number, generate large primes
SYNOPSIS
**factor **[ *number *]
**primes **[ *start *[ *finish *] ]
DESCRIPTION
*Factor *prints *number *and its prime factors, each repeated the proper
number of times. The number must be positive and less than 2**54
(about 1.8e16)
If no *number *is given, *factor *reads a stream of numbers from the
standard input and factors them. It exits on any input not a positive
integer. Maximum running time is proportional to sqrt(n).
*Primes *prints the prime numbers ranging from *start *to *finish*, where
*start *and *finish *are positive numbers less than 2**56. If *finish *is
missing, *primes *prints without end; if *start *is missing, it reads the
starting number from the standard input.
SOURCE
**/src/cmd/factor.c**
**/src/cmd/primes.c**
FACTOR(1plan9)