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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
21837983436759678 ~1988
21838451436769038 ~1988
21838763436775278 ~1988
21839099436781998 ~1988
21839123436782478 ~1988
218392736551781919 ~1991
218393712183937119 ~1990
21839459436789198 ~1988
218395611747164899 ~1990
21839563139773203310 ~1992
218396519172653439 ~1992
21839963436799278 ~1988
21840491436809838 ~1988
21840551436811038 ~1988
21840829244617284910 ~1993
21841217117942571910 ~1992
21841331436826638 ~1988
21841619436832398 ~1988
21841691436833838 ~1988
218418171310509039 ~1989
21842699436853998 ~1988
21842963436859278 ~1988
21843383436867678 ~1988
21843803436876078 ~1988
21844019436880398 ~1988
Exponent Prime Factor Digits Year
21844139436882798 ~1988
21844919436898398 ~1988
218452371747618979 ~1990
218453091747624739 ~1990
21845711436914238 ~1988
21846131436922638 ~1988
21846299436925998 ~1988
21846899436937998 ~1988
218470392184703919 ~1990
21847571436951438 ~1988
21848483436969678 ~1988
21848639436972798 ~1988
21848903436978078 ~1988
21849083436981678 ~1988
21849599436991998 ~1988
218498571747988579 ~1990
21849923436998478 ~1988
21850043437000878 ~1988
218503071748024579 ~1990
21850343437006878 ~1988
21851003437020078 ~1988
21851051437021038 ~1988
218517891748143139 ~1990
218520793933374239 ~1991
21852683437053678 ~1988
Exponent Prime Factor Digits Year
21852851437057038 ~1988
21852899437057998 ~1988
21853043437060878 ~1988
21853103437062078 ~1988
21853343437066878 ~1988
218534871748278979 ~1990
218536791748294339 ~1990
21854471437089438 ~1988
21854543437090878 ~1988
218545611748364899 ~1990
21854699437093998 ~1988
21854711437094238 ~1988
21855143437102878 ~1988
21855503437110078 ~1988
21855923437118478 ~1988
21855959437119198 ~1988
218572331311433999 ~1989
21857519437150398 ~1988
21857579437151598 ~1988
21857663437153278 ~1988
218578731311472399 ~1989
218584275246022499 ~1991
21858731437174638 ~1988
21858803437176078 ~1988
21859163437183278 ~1988
Exponent Prime Factor Digits Year
21859249153014743110 ~1992
218593371748746979 ~1990
21859391437187838 ~1988
21859451437189038 ~1988
21859451144272376710
21860711437214238 ~1988
218618691748949539 ~1990
21862031437240638 ~1988
218623635246967139 ~1991
21862751437255038 ~1988
21863531437270638 ~1988
21863771437275438 ~1988
21863843437276878 ~1988
21863951437279038 ~1988
21864659437293198 ~1988
21865331437306638 ~1988
21865379437307598 ~1988
21865583437311678 ~1988
21865619437312398 ~1988
21866699437333998 ~1988
21867143437342878 ~1988
21867383437347678 ~1988
21868139437362798 ~1988
218682193936279439 ~1991
218685011312110079 ~1989
1475
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25-04-13