Wikipedia:Articles for deletion/Polydivisible number
A lack of sources in the article does NOT mean that the article isn't notable. In fact, it was never mentioned by the nominator whether sources exist, but only that the one external link isn't competent enough. AFD is not cleanup also means that AFD isn't an excuse for people to add sources to the article. While it feels good to say that it fails  due to no sources being present,  only applies to content in which no reliable, published sources exist. And reliable, published sources definitely exist, which also proves notability for being an important number sequence
— User:Utopes, 03:42, 9 October 2019 (UTC)
Stance: keep
Cited policy: WP:OR (Wikipedia:No original research)