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Graham's Number - Numberphile

Numberphile · explainer · Watch on YouTube

Recreational & visual mathPure mathematics

What it is

Numberphile's Tony Padilla and Matt Parker discuss Graham's number, once the largest number used in a mathematical proof, and how enormous it is.

Why Hacker News recommends it

Recommended as the mind-melting intro to unimaginably large numbers.

  • 4 people recommended it
  • 3 different months
  • 2 strong recommendations
  • first 2013, last 2024

What HN commenters said

  1. “My brain melts every time I watch this video [1] from Numberphile on Graham's number.”

    Mind-melting Numberphile video on Graham's number.

    prezjordan, 2015-02 · Strong recommendation · in “Graham's Number”

  2. “If math can make you feel awe, you've got to watch the Numberphile series on very big numbers.”

    Numberphile series on huge numbers used in proofs, mind-bending.

    jiggawatts, 2024-05 · Strong recommendation · in “A Trial HIV Vaccine Triggered Elusive and Essential Antibodies in Humans”

  3. “Numberphile [1] too has a great explanation”

    Numberphile gives a great explanation of Graham's number.

    Ronsenshi, 2015-02 · Recommendation · in “Graham's Number”

  4. “It's a pretty interesting video for seeing how quickly the numbers get unimaginably massive.”

    Shows how quickly numbers become unimaginably massive.

    johnsonjo, 2019-05 · Recommendation · in “Knuth's Up-Arrow Notation”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: graham's number, large numbers, ramsey theory, numberphile, up-arrow notation

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