hackertube.io

5040 and other Anti-Prime Numbers - Numberphile

Numberphile · explainer · Watch on YouTube

Pure mathematicsRecreational & visual math

What it is

Numberphile's James Grime discusses highly composite numbers, nicknamed anti-primes, which have more factors than any smaller number, using 5040 as the central example. It touches on Plato and Ramanujan.

Why Hacker News recommends it

HN points to it whenever highly divisible numbers matter, such as sharding, base 12, time units and music.

  • 1 people recommended it
  • 1 different months
  • 1 strong recommendations
  • first 2018, last 2024

What HN commenters said

  1. “Here is a GREAT video on these 'anti-prime' numbers”

    Explains anti-prime (highly composite) numbers.

    Balgair, 2018-05 · Strong recommendation · in “The fifth hyperfactorial: 5⁵×4⁴×3³×2²×1¹=86400000 milliseconds is exactly 1 day”

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

Topics: anti-primes, 5040, number theory, divisibility, numberphile

Also recommended by the same people