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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
6447283644728318 ~1986
6447317515785378 ~1986
6447557515804578 ~1986
64477671547464099 ~1987
64479231547501539 ~1987
6447929902710078 ~1986
6447989515839138 ~1986
6448133386887998 ~1985
64481571934447119 ~1987
6448223128964478 ~1984
64482411934472319 ~1987
6448451128969038 ~1984
6448529515882338 ~1986
6448553386913198 ~1985
6448811128976238 ~1984
6449021515921698 ~1986
64491175159293619 ~1988
6449351128987038 ~1984
6449753386985198 ~1985
6449903128998078 ~1984
64501091548026179 ~1987
6450217387013038 ~1985
6450299129005998 ~1984
6450611129012238 ~1984
6451163129023278 ~1984
Exp. Prime Factor Digits Year
6451217387073038 ~1985
6451271129025438 ~1984
6451331129026638 ~1984
6451331516106498
6451433387085998 ~1985
6451573387094398 ~1985
6451691129033838 ~1984
64517592580703619 ~1987
6451769516141538 ~1986
64519331032309299 ~1986
6451943129038878 ~1984
6452111129042238 ~1984
6452261516180898 ~1986
64522911161412399 ~1986
64523892580955619 ~1987
6452423129048478 ~1984
6452711129054238 ~1984
6452753387165198 ~1985
64528211419620639 ~1987
6452893387173598 ~1985
64528931548694339
6453137516250978 ~1986
6453263129065278 ~1984
64534632194177439 ~1987
6453493387209598 ~1985
Exp. Prime Factor Digits Year
6453497516279778 ~1986
64536475808282319 ~1988
6453661387219678 ~1985
64539891548957379 ~1987
64540311161725599 ~1986
6454121516329698 ~1986
6454223129084478 ~1984
6454403129088078 ~1984
6454517387271038 ~1985
6454523129090478 ~1984
6454619516369538 ~1986
6454667516373378 ~1986
6454709516376738 ~1986
6455063129101278 ~1984
64551011032816179 ~1986
64552331032837299 ~1986
6455473387328398 ~1985
6455539645553918 ~1986
6455857387351438 ~1985
64560111678562879 ~1987
6456239129124798 ~1984
64562711162128799 ~1986
6456287516502978 ~1986
6456421387385278 ~1985
6456563129131278 ~1984
Exp. Prime Factor Digits Year
6456623129132478 ~1984
6456641387398478 ~1985
6456679645667918 ~1986
64567271549614499 ~1987
6457013387420798 ~1985
6457079129141598 ~1984
64571091042177392711 ~1991
6457261387435678 ~1985
6457631129152638 ~1984
6457861387471678 ~1985
6457877387472638 ~1985
6457877904102798
6457991129159838 ~1984
6458339129166798 ~1984
64583391162501039
6458399516671938 ~1986
6458437387506238 ~1985
64585631033370099 ~1986
6458801387528078 ~1985
64589232196033839 ~1987
6459029516722338 ~1986
6459307645930718 ~1986
6459443129188878 ~1984
6459493387569598 ~1985
6459683129193678 ~1984
789
GIMPS The Prime Pages FactorDb.com
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25-04-13