{ "id": "1008.1274", "version": "v1", "published": "2010-08-06T20:19:09.000Z", "updated": "2010-08-06T20:19:09.000Z", "title": "On divisors of Lucas and Lehmer numbers", "authors": [ "C. L. Stewart" ], "categories": [ "math.NT" ], "abstract": "Let u(n) be the n-th term of a Lucas sequence or a Lehmer sequence.In this article we shall establish an estimate from below for the greatest prime factor of u(n) which is of the form nexp(logn/104loglogn). In so doing we are able to resolve a question of Schinzel from 1962 and a conjecture of Erdos from 1965.In addition we are able to give the first general improvement on results of Bang from 1886 and Carmichael from 1912.", "revisions": [ { "version": "v1", "updated": "2010-08-06T20:19:09.000Z" } ], "analyses": { "subjects": [ "11B39", "11J86" ], "keywords": [ "lehmer numbers", "greatest prime factor", "first general improvement", "lehmer sequence", "n-th term" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1008.1274S" } } }