FACTOR(1plan9)

📦 version 6, in debian bookworm, debian trixie, ubuntu jammy, ubuntu noble, ubuntu questing, ubuntu resolute, ubuntu stonking

🎀 NAME 🎀

okay bestie, welcome to factor(1plan9) 💖

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) — like, that is the vibe check, no exceptions 💀

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

this was served fresh from the Plan 9 manual, page FACTOR(1plan9) 💖 the footer is literally FACTOR(1plan9) too — no date on it, just legacy, periodt ✨👑

📦 where this page comes from