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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
421351332528107999 ~1992
421353295898946079 ~1993
421373212528239279 ~1992
42137939842758798 ~1991
42138059842761198 ~1991
42138443842768878 ~1991
42139403842788078 ~1991
421410173371281379 ~1992
42141479842829598 ~1991
42142151842843038 ~1991
42142823842856478 ~1991
42142979842859598 ~1991
42143219842864398 ~1991
42143963842879278 ~1991
42144131842882638 ~1991
421451332528707999 ~1992
42145931842918638 ~1991
42147359842947198 ~1991
42148103842962078 ~1991
421486514214865119 ~1992
42149099842981998 ~1991
42149759842995198 ~1991
421499093371992739 ~1992
42151391843027838 ~1991
421529172529175039 ~1992
Exponent Prime Factor Digits Year
42154943843098878 ~1991
42154991843099838 ~1991
421559513372476099 ~1992
42155957101174296910 ~1993
42157151843143038 ~1991
421578132529468799 ~1992
421582932529497599 ~1992
42158423843168478 ~1991
42158723843174478 ~1991
42158999843179998 ~1991
42159097101181832910 ~1993
421601416745622579 ~1993
421632413373059299 ~1992
42163931843278638 ~1991
421643772529862639 ~1992
421646532529879199 ~1992
42165131843302638 ~1991
421655693373245539 ~1992
42165863843317278 ~1991
42167663843353278 ~1991
42169139843382798 ~1991
421696372530178239 ~1992
42169643843392878 ~1991
42169931843398638 ~1991
42169943843398878 ~1991
Exponent Prime Factor Digits Year
42170231843404638 ~1991
42170543843410878 ~1991
42170651843413038 ~1991
421708932530253599 ~1992
421717219277778639 ~1993
42172139843442798 ~1991
421727212530363279 ~1992
421733572530401439 ~1992
42174079101217789710 ~1993
42174311843486238 ~1991
42174659843493198 ~1991
421749412530496479 ~1992
421751575904521999 ~1993
42175799843515998 ~1991
42176363843527278 ~1991
42176639843532798 ~1991
42178211843564238 ~1991
421784212530705279 ~1992
42178439843568798 ~1991
421784397592119039
42178991843579838 ~1991
42180563843611278 ~1991
42180623843612478 ~1991
42180823278393431910 ~1994
42181523843630478 ~1991
Exponent Prime Factor Digits Year
42181619843632398 ~1991
42181823843636478 ~1991
421818477592732479 ~1993
421820093374560739 ~1992
42182111843642238 ~1991
421826532530959199 ~1992
42182963843659278 ~1991
42183143843662878 ~1991
42184739843694798 ~1991
42188231843764638 ~1991
42188231236254093710
421884532531307199 ~1992
421888132531328799 ~1992
42188879843777598 ~1991
42189743843794878 ~1991
421904332531425999 ~1992
421912913375303299 ~1992
42191483843829678 ~1991
421930012531580079 ~1992
42193601126580803110 ~1993
421939732531638399 ~1992
42194843843896878 ~1991
42196103843922078 ~1991
42197783843955678 ~1991
42200339135041084910 ~1993
2041
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25-10-20