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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.
Exponent Prime Factor Digits Year
12239911430844867310 ~1992
12240073734404398 ~1987
12240083244801678 ~1986
12240197734411838 ~1987
12240419244808398 ~1986
12240779244815598 ~1986
12240803244816078 ~1986
122410131713741839 ~1988
12241841154247196710 ~1991
12242123244842478 ~1986
12242291244845838 ~1986
12242651244853038 ~1986
12242891979431298 ~1988
122431031224310319 ~1988
122433671224336719 ~1988
12243541734612478 ~1987
12243551244871038 ~1986
12243743244874878 ~1986
12243839244876798 ~1986
12244109979528738 ~1988
12244319979545538 ~1988
12244361734661678 ~1987
122444592204002639 ~1989
122444831224448319 ~1988
12244871244897438 ~1986
Exponent Prime Factor Digits Year
12244871979589698
12245081979606498 ~1988
12245099244901998 ~1986
12245399244907998 ~1986
122456032938944739 ~1989
12245741979659298 ~1988
12245879244917598 ~1986
12245939244918798 ~1986
12246191244923838 ~1986
12246337734780238 ~1987
12246623244932478 ~1986
12247211244944238 ~1986
12247423411513412910 ~1992
12247919244958398 ~1986
12248231244964638 ~1986
12248473734908398 ~1987
12248741979899298 ~1988
12248941734936478 ~1987
12249323244986478 ~1986
12249383244987678 ~1986
12249533127395143310 ~1991
12249917979993378 ~1988
12249983244999678 ~1986
12250211245004238 ~1986
12250397980031778 ~1988
Exponent Prime Factor Digits Year
12250493735029598 ~1987
122506271225062719 ~1988
12250681735040878 ~1987
12251411245028238 ~1986
12252263245045278 ~1986
12252431245048638 ~1986
12252641735158478 ~1987
12252671245053438 ~1986
12252791980223298 ~1988
122528275881356979 ~1990
122530576616650799 ~1990
12253079245061598 ~1986
122533497597076399 ~1990
122534775881668979 ~1990
12254171245083438 ~1986
12254197735251838 ~1987
12254663245093278 ~1986
12254771245095438 ~1986
12254783245095678 ~1986
12254797735287838 ~1987
12254843245096878 ~1986
12255277735316638 ~1987
12256019245120398 ~1986
12256151245123038 ~1986
12256177735370638 ~1987
Exponent Prime Factor Digits Year
12256301980504098 ~1988
122563271225632719 ~1988
12256421735385278 ~1987
12256883245137678 ~1986
12257039245140798 ~1986
12257243245144878 ~1986
12257339980587138 ~1988
12257351245147038 ~1986
12257351980588098
122573516864116579
12257411245148238 ~1986
12257627980610178 ~1988
12257821735469278 ~1987
12257891245157838 ~1986
12257963245159278 ~1986
12257977735478638 ~1987
12258443245168878 ~1986
12258731245174638 ~1986
12258791245175838 ~1986
12258899245177998 ~1986
12259223245184478 ~1986
12259283245185678 ~1986
12259631245192638 ~1986
12259649980771938 ~1988
12259823245196478 ~1986
1119
GIMPS The Prime Pages FactorDb.com
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25-04-13