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Small Mersenne Prime Factors
Prime numbers of the form Mp= 2p − 1 are called Mersenne primes. For Mp to be prime, p must also be prime.
Any factor q of a Mersenne number 2p − 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
11946712867210419
1194679477871618 ~1982
1194707215047278 ~1981
119473123894637 ~1978
1194731501787038
119489923897997 ~1978
1194901191184178 ~1981
119492323898477 ~1978
1194959884269678 ~1982
119497123899437 ~1978
1194979406292878 ~1981
119499771699837 ~1980
119502171701277 ~1980
1195171119517118 ~1980
119519371711597 ~1980
1195193741019678
1195561263023438 ~1981
1195573358671918 ~1981
1195693191310898 ~1981
119575123915037 ~1978
1195979502311198 ~1982
119614195691297 ~1980
119617771770637 ~1980
119623123924637 ~1978
1196509478603618 ~1982
Exp. Prime Factor Digits Year
119651995721537 ~1980
119652171791277 ~1980
1196537167515198 ~1981
119660995728737 ~1980
1196653263263678 ~1981
1196809646276878 ~1982
1196813646279038 ~1982
119684323936877 ~1978
1196843287242338
119693923938797 ~1978
119701123940237 ~1978
119703771822237 ~1980
1197041383053138 ~1981
119710795768577 ~1980
1197113167595838 ~1981
1197167311263438 ~1981
119723923944797 ~1978
119726323945277 ~1978
1197277287346498 ~1981
1197337359201118 ~1981
1197347215522478 ~1981
1197433191589298 ~1981
1197527574812978 ~1982
119792323958477 ~1978
119794171876477 ~1980
Exp. Prime Factor Digits Year
119820171892077 ~1980
11982011917121619
1198247287579298 ~1981
1198247311544238
1198259287582178 ~1981
1198321263630638 ~1981
119834323966877 ~1978
1198363407443438 ~1981
119845123969037 ~1978
119858323971677 ~1978
119875123975037 ~1978
119911795929377 ~1980
119912323982477 ~1978
119918323983677 ~1978
1199309743571598 ~1982
11993092014839139
1199357167909998 ~1981
1199357455755678
1199369935507838 ~1982
119945923989197 ~1978
119946171967677 ~1980
1199521479808418 ~1982
1199573359871918 ~1981
1199591599795518 ~1982
11996631151676499 ~1983
Exp. Prime Factor Digits Year
119969923993997 ~1978
119969995975937
1199767479906818 ~1982
1199813383940178 ~1981
119987923997597 ~1978
1200061192009778 ~1981
1200307576147378 ~1982
1200323672180898 ~1982
120035924007197 ~1978
120038324007677 ~1978
1200509168071278 ~1981
1200527216094878 ~1981
1200581884588080910 ~1987
1200751120075118 ~1980
12007513386117839
120091796073377 ~1980
1200917576440178
1200917960733618
120101924020397 ~1978
120104324020877 ~1978
120115372069197 ~1980
1201153480461218
1201217456462478 ~1982
120128324025677 ~1978
1201309768837778 ~1982
278
GIMPS The Prime Pages FactorDb.com
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25-09-07