Schinzel, Andrzej On the composite integers of the form \(c(ak+b)!\pm 1\). (English) Zbl 0107.26503 Nordisk Mat. Tidskr. 10, 8-10 (1962). Reviewer: Erich Härtter (Mainz) Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MathOverflow Questions: Are There Infinitly Many \(n\) Which \(a\times n!+1\) Be Composite? MSC: 11A51 Factorization; primality Keywords:composite integers PDFBibTeX XMLCite \textit{A. Schinzel}, Nordisk Mat. Tidskr. 10, 8--10 (1962; Zbl 0107.26503)