Small Mersenne Prime Factors (page 920/5025)

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
8428333	50569999	8	~1986
8428487	151712767	9	~1987
8428601	50571607	8	~1986
8428631	16857263	8	~1985
8428633	50571799	8	~1986
8429243	16858487	8	~1985
8429257	50575543	8	~1986
8429341	50576047	8	~1986
8429423	16858847	8	~1985
8429767	84297671	8	~1987
8430263	16860527	8	~1985
8430377	50582263	8	~1986
8430377	67443017	8
8430473	50582839	8	~1986
8430479	16860959	8	~1985
8430731	16861463	8	~1985
8431487	67451897	8	~1987
8431637	50589823	8	~1986
8431751	16863503	8	~1985
8431799	16863599	8	~1985
8431931	16863863	8	~1985
8432197	50593183	8	~1986
8432309	67458473	8	~1987
8432321	50593927	8	~1986
8432471	16864943	8	~1985

Exp.	Prime Factor	Digits	Year
8432537	67460297	8	~1987
8432581	50595487	8	~1986
8432647	84326471	8	~1987
8432849	67462793	8	~1987
8433211	84332111	8	~1987
8433263	16866527	8	~1985
8433779	16867559	8	~1985
8433779	67470233	8
8433913	134942609	9	~1987
8433959	16867919	8	~1985
8434379	16868759	8	~1985
8434763	16869527	8	~1985
8434799	16869599	8	~1985
8434823	16869647	8	~1985
8434957	50609743	8	~1986
8435081	67480649	8	~1987
8435237	50611423	8	~1986
8435261	67482089	8	~1987
8435579	16871159	8	~1985
8435579	202453897	9
8435711	16871423	8	~1985
8435743	84357431	8	~1987
8435831	16871663	8	~1985
8435939	16871879	8	~1985
8436023	16872047	8	~1985

Exp.	Prime Factor	Digits	Year
8436353	50618119	8	~1986
8436499	84364991	8	~1987
8436671	16873343	8	~1985
8436671	607440313	9
8437181	67497449	8	~1987
8437211	16874423	8	~1985
8437433	50624599	8	~1986
8437733	50626399	8	~1986
8437861	50627167	8	~1986
8437931	16875863	8	~1985
8438141	50628847	8	~1986
8438351	16876703	8	~1985
8438377	50630263	8	~1986
8438399	16876799	8	~1985
8438407	84384071	8	~1987
8438459	16876919	8	~1985
8438483	16876967	8	~1985
8438761	50632567	8	~1986
8439251	16878503	8	~1985
8439443	16878887	8	~1985
8439479	16878959	8	~1985
8439503	16879007	8	~1985
8439581	50637487	8	~1986
8439601	50637607	8	~1986
8440193	50641159	8	~1986

Exp.	Prime Factor	Digits	Year
8440343	16880687	8	~1985
8440391	16880783	8	~1985
8440511	16881023	8	~1985
8440979	16881959	8	~1985
8441087	422054351	9	~1988
8441423	16882847	8	~1985
8441539	84415391	8	~1987
8441737	50650423	8	~1986
8441831	16883663	8	~1985
8442029	67536233	8	~1987
8442271	84422711	8	~1987
8442359	67538873	8	~1987
8442437	67539497	8	~1987
8442767	675421361	9	~1989
8442779	16885559	8	~1985
8442781	50656687	8	~1986
8443079	16886159	8	~1985
8443117	50658703	8	~1986
8443199	67545593	8	~1987
8443361	50660167	8	~1986
8443453	50660719	8	~1986
8443651	151985719	9	~1987
8443709	270198689	9	~1988
8443913	50663479	8	~1986
8444003	16888007	8	~1985

4.724.182 digits

25-04-13