6174 - Numberphile
Why the open web links it
Explores the mathematical mystery and properties of the number 6174, known as Kaprekar's Constant.
Linked by 7 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including wikipedia.org, good.is, graylightedu.co.uk, homconst.com, iesgregorimaians.org.
Cited in 2 Wikipedia articles, including D. R. Kaprekar, 6174.