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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
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
218507331311043999 ~1989
21851003437020078 ~1988
21851051437021038 ~1988
218517891748143139 ~1990
218520793933374239 ~1991
21852683437053678 ~1988
21852851437057038 ~1988
21852899437057998 ~1988
21853043437060878 ~1988
Exponent Prime Factor Digits Year
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
21859249153014743110 ~1992
218593371748746979 ~1990
21859391437187838 ~1988
Exponent Prime Factor Digits Year
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
218685291749482339 ~1990
21868571437371438 ~1988
21868631437372638 ~1988
Exponent Prime Factor Digits Year
218686315685844079
218686695248480579 ~1991
21869279437385598 ~1988
21869339437386798 ~1988
21869483437389678 ~1988
218696931312181599 ~1989
218697192186971919 ~1990
21870011437400238 ~1988
21870419437408398 ~1988
218707331312243999 ~1989
21870791437415838 ~1988
21871043437420878 ~1988
21871331437426638 ~1988
21872171437443438 ~1988
218723696999158099 ~1991
21872663437453278 ~1988
21872723437454478 ~1988
21872783437455678 ~1988
21872891437457838 ~1988
21873191437463838 ~1988
21873433100617791910 ~1992
21873539437470798 ~1988
218744091749952739 ~1990
21875123437502478 ~1988
21875291437505838 ~1988
1491
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25-06-08