Section (1) factor
factor — factor numbers
Print the prime factors of each specified integer NUMBER. If none are specified on the command line, read them from standard input.
display this help and exit
output version information and exit
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
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Full documentation <https://www.gnu.org/software/coreutils/factor>
or available locally via: info _zsingle_quotesz_(coreutils) factor invocation_zsingle_quotesz_
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