Small Mersenne Prime Factors (page 782/5130)

Small Mersenne Prime Factors
Prime numbers of the form M_p= 2^p − 1 are called Mersenne primes. For M_p to be prime, p must also be prime.
Any factor q of a Mersenne number 2^p − 1 must be of the form 2kp + 1, where integer k ≥ 0. Furthermore, q must be 1 or 7 mod 8.

Exp.	Prime Factor	Digits	Year
6281239	62812391	8	~1986
6281339	12562679	8	~1984
6281459	12562919	8	~1984
6281519	12563039	8	~1984
6281579	263826319	9	~1987
6281591	12563183	8	~1984
6281909	201021089	9	~1987
6282071	12564143	8	~1984
6282377	50259017	8	~1986
6282961	100527377	9	~1986
6283019	50264153	8	~1986
6283157	37698943	8	~1985
6283253	87965543	8	~1986
6283273	37699639	8	~1985
6283331	12566663	8	~1984
6283379	12566759	8	~1984
6283811	12567623	8	~1984
6283841	50270729	8	~1986
6284017	37704103	8	~1985
6284123	12568247	8	~1984
6284527	62845271	8	~1986
6284549	50276393	8	~1986
6284717	37708303	8	~1985
6284903	12569807	8	~1984
6285277	100564433	9	~1986

Exp.	Prime Factor	Digits	Year
6285527	113139487	9	~1986
6285557	50284457	8	~1986
6285613	37713679	8	~1985
6285659	12571319	8	~1984
6285791	12571583	8	~1984
6285841	37715047	8	~1985
6285931	62859311	8	~1986
6286019	50288153	8	~1986
6286229	150869497	9	~1987
6286331	12572663	8	~1984
6286339	62863391	8	~1986
6286507	62865071	8	~1986
6286697	37720183	8	~1985
6287033	37722199	8	~1985
6287179	62871791	8	~1986
6287273	37723639	8	~1985
6287459	50299673	8	~1986
6287573	37725439	8	~1985
6287581	37725487	8	~1985
6287639	12575279	8	~1984
6287783	12575567	8	~1984
6287849	50302793	8	~1986
6287893	37727359	8	~1985
6288119	50304953	8	~1986
6288199	817465871	9	~1989

Exp.	Prime Factor	Digits	Year
6288311	12576623	8	~1984
6288313	138342887	9	~1987
6288323	12576647	8	~1984
6288349	150920377	9	~1987
6288511	62885111	8	~1986
6288613	37731679	8	~1985
6288781	37732687	8	~1985
6288781	100620497	9
6289091	12578183	8	~1984
6289229	50313833	8	~1986
6289237	150941689	9	~1987
6289469	50315753	8	~1986
6289601	50316809	8	~1986
6289697	50317577	8	~1986
6289783	62897831	8	~1986
6289841	37739047	8	~1985
6289939	62899391	8	~1986
6289957	37739743	8	~1985
6290021	50320169	8	~1986
6290243	12580487	8	~1984
6290327	50322617	8	~1986
6290633	37743799	8	~1985
6290693	37744159	8	~1985
6290759	12581519	8	~1984
6290951	12581903	8	~1984

Exp.	Prime Factor	Digits	Year
6291277	37747663	8	~1985
6291487	553650857	9	~1988
6291503	12583007	8	~1984
6291529	150996697	9	~1987
6291529	704651249	9
6291757	37750543	8	~1985
6291773	37750639	8	~1985
6291863	201339617	9	~1987
6291911	163589687	9	~1987
6291941	50335529	8	~1986
6291959	12583919	8	~1984
6291973	37751839	8	~1985
6292417	37754503	8	~1985
6292441	100679057	9	~1986
6292543	62925431	8	~1986
6292813	37756879	8	~1985
6292981	37757887	8	~1985
6293291	12586583	8	~1984
6293597	50348777	8	~1986
6293939	12587879	8	~1984
6294083	12588167	8	~1984
6294137	37764823	8	~1985
6294143	12588287	8	~1984
6294161	37764967	8	~1985
6294251	12588503	8	~1984

4.828.532 digits

25-06-01