Status
On this page
Status
Topics
Status
On this page
Status
Topics
Is there some such that there are infinitely many where all primes divide
Source: erdosproblems.com/457
An accepted solution exists. The statement is true.
Proved. The status-defining source is the site's own account of a construction that its commentary attributes to GPT-5.2 Pro prompted by Kevin Barreto (2 March 2026): the construction gives infinitely many with every prime dividing the product, for each fixed , so the constant can be raised to any constant below , and a second run of GPT-5.2 Pro the same day proves the statement for every constant in place of . Tao's thread comments (2--3 March 2026) sketch an elaboration giving infinitely many with ; a write-up of that elaboration produced by GPT-5.2 Thinking, posted by Nat Sothanaphan on 3 March 2026, states the form, and its proof gives the constant , which Tao's reply credits to GPT; it is the second claim page, Sothanaphan, claimed and not adopted. The site's curator, Thomas Bloom, accepted the answer on 7 March 2026 with the label PROVED (LEAN). No paper, preprint or refereed publication exists: the argument's written forms are documents linked from the thread on a file-sharing service (the first of them is the anonymous four-page note [Anon26], see gap (1); the second was not read) and an external Lean file at a pinned commit, which proves the formal-conjectures statement with ; it was not built or independently audited here, and no local kernel credit is claimed. This is a source-supported solution accepted by the site, distinct from a claim of journal refereeing: no refereed publication, no arXiv version and no independent expert review of the argument was found. The results in hand before 2026 were Erdős's own example, the product of the primes between and , giving once rather than is that product or the product starts at (see the origins paragraph below), and his crude bound (both 1979). The standing is derived from the claim page the construction's claim page (Barreto, 2026) with these qualifications (accepted on the site's documented acceptance; no paper, no refereed publication and no formal audit here).