Going Postal
MENU
  • Home ►
    • Contact
    • Privacy Policy
    • Blog
  • Politics ►
    • Authoritarianism
    • Capitalism
    • Communism
    • Conservatives
    • Elections
    • European Union
    • Labour
    • Peace
    • Socialism
    • Terrorism
    • War
    • US
  • Economics ►
    • Business
    • Finance
    • Trading
  • Science ►
    • Engineering
    • Geology
    • Health
    • Physics
    • Mathematics
    • Space
    • Technology
  • History ►
    • English Civil War
    • 18th Century
    • 19th Century
    • 20th Century
    • WW I
    • WW II
    • The Cold War
  • Literature ►
    • Biography
    • Book Reviews
    • Fiction
    • Mystery
    • Poetry
    • Satire
    • Thriller
  • Forums ►
    • Campaigning
    • Competitions
    • Culture
    • Current Affairs
    • Elections
    • GP Events
    • Media Shows & Appearances
    • Publishing
    • Welcome
  • Merchandise ►
    • Trump Mugs and Tee Shirts
    • Custom Mug
    • GP Mugs
    • GP Coasters
    • GP Books
    • GP Keyrings
  • Home
    • Contact
    • Privacy Policy
    • Blog
  • Politics
    • Authoritarianism
    • Capitalism
    • Communism
    • Conservatives
    • Elections
    • European Union
    • Labour
    • Peace
    • Socialism
    • Terrorism
    • War
    • US
  • Economics
    • Business
    • Finance
    • Trading
  • Science
    • Engineering
    • Geology
    • Health
    • Physics
    • Mathematics
    • Space
    • Technology
  • History
    • English Civil War
    • 18th Century
    • 19th Century
    • 20th Century
    • WW I
    • WW II
    • The Cold War
  • Literature
    • Biography
    • Book Reviews
    • Fiction
    • Mystery
    • Poetry
    • Satire
    • Thriller
  • Forums
    • Campaigning
    • Competitions
    • Culture
    • Current Affairs
    • Elections
    • GP Events
    • Media Shows & Appearances
    • Publishing
    • Welcome
  • Merchandise
    • Trump Mugs and Tee Shirts
    • Custom Mug
    • GP Mugs
    • GP Coasters
    • GP Books
    • GP Keyrings

Primality

Mathematics

Wilson’s Theorem

2nd December 2019 OldTrout 1974 Comments

Wilson’s Theorem is a test for primality.  It is inefficient for large numbers since factorials () grow very fast.  Nevertheless, it has its uses because of its simplicity. It was conjectured by Wilson and published [more…]

Latest Articles

  • Jinnie
    Jinnie’s Story, Book Eight – Chapter Twenty
    17th July 2025 1892 Comments
  • Can the BRICS Nations Lead Us to a Better World?
    17th July 2025 3043 Comments
  • Postcard from Thailand Part I
    16th July 2025 2443 Comments
  • The cult of victimhood
    16th July 2025 2894 Comments
  • West Country Rides, Five
    15th July 2025 2643 Comments
  • Kill not cure: the economic prescriptions that failed
    15th July 2025 2620 Comments
  • Cruising to the Canaries – Part Two
    14th July 2025 2246 Comments

GP on Twitter

Tweets by GoingPostalBlog

Elsewhere on GP

  • ABC

    15th March 2023 2328 Comments
    Some Puffins may have dim & distant memories of learning their ABCs by rote, both at home & at primary skool. Which is E X A C T L Y why they’re so confused & [more...]
  • Larry’s Diary, Week One Hundred and Sixty-Two

    9th October 2022 2743 Comments
    Monday A good morning to all my readers and welcome to another week of my witterings. On my own again this weekend, which I don’t mind at all. I don’t know whether Mary Elizabeth went [more...]
  • You want to own your own caravan. Really!

    13th July 2021 2904 Comments
    I am talking about a static caravan, it has wheels, but seldom moves.  I am not talking about those mobile camper vans that several Puffins have and look jolly good fun. First thing to say [more...]
  • Fabulously Flamboyant Fridays – Polari

    14th June 2024 2707 Comments
    Welcome back my friends, to the flamboyance that never ends. Tonight, it’s bona to vada your dolly old eeks, as this week’s Fabulously Flamboyant Friday proudly presents yet another march of the muscle Marys up [more...]
  • A Walk Around Lee Circle

    17th September 2020 3196 Comments
    In his seminal commencement address to the University of Texas’s excited class of 2014, US Navy SEAL and four-star Admiral William H McRaven reminded his audience that, if they wanted to change the world for [more...]

Articles by Author

  • 70s_girl
  • 1642again
  • 10210ken
  • Æthelberht
  • Alexsandr too
  • Always Worth Saying
  • Ancient Mariner
  • Ang Ryman
  • Annie Dee
  • AW Kamau
  • Bark Kantatas
  • Barbican
  • Bassman
  • Bergen
  • Beware of Geeks bearing GIFs
  • Bill Quango MP
  • Blown Periphery
  • Bobo
  • Chrissie
  • Churchills Shark
  • Colin Cross
  • Colliemum
  • Columba Palumbus
  • Cynic
  • Dalester
  • DH
  • Dixie
  • DJM
  • Dorset Knob
  • Doxie
  • Dr Mike Finnley
  • EJ – Wankpuffin
  • El Cnutador
  • Emile Woolf
  • Eraser of Love
  • Foxoles
  • Gillygangle
  • Gmbd
  • Godfrey Bloom
  • Grimy Miner
  • GrumpyAngler
  • Guardian Council
  • Ivory Cutlery
  • James Dalton
  • Jethro
  • Jerry F
  • Jerry Mandarin
  • JimmySP
  • Jim Walshe
  • Joe Slater
  • Joe Williams
  • John Booth
  • John Tull
  • Jonathon Davies
  • Judas was paid
  • Katabasis
  • Kent
  • Kipper
  • LetEnglandShake
  • Lugosi
  • Madam Revenant
  • Martin Mezger
  • Mr QM
  • Nautilus
  • NeverUpToTheJob
  • Noix
  • Northern man
  • Oddanatomy
  • OldTrout
  • Ozymandias
  • Paul Wicker
  • Phil the test manager
  • Rat Catcher
  • RedBudgie
  • Reggie
  • Roger Ackroyd
  • Rookwood
  • Ross
  • SharpieType301
  • Shibusa
  • Sunshine & Showers
  • Sweaty Dave
  • Tachybaptus
  • The Black Swan
  • The Buttscratcher Jimmy
  • Tom Pudding
  • Verax Cincinnatus
  • Viciousbutfair
  • Vir Cantium
  • \/()43 |_|K19
  • well_chuffed
  • William
  • WorthingGooner
  • Wycombewanderer

Archives

Contribute to GP

If you wish to make a contribution small and often would be preferable. Paypal accepts all sorts of payment methods.




In Pictures

  • Jinnie
Meta
  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org
Sitemap
  • Home
  • Bash 2025
  • About
  • Contact
  • Support and Subscriptions
  • Moderation philosophy and policy
  • Privacy Policy
  • Disqus Help Page

Copyright © 2025 | MH Magazine WordPress Theme by MH Themes