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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
12570119251402398 ~1986
12570179251403598 ~1986
12570263251405278 ~1986
12570451103077698310 ~1990
12570997754259838 ~1988
12571199251423998 ~1986
12571319251426398 ~1986
12571541754292478 ~1988
12571697100573576110 ~1990
125717533771525919 ~1989
12571859251437198 ~1986
12571943251438878 ~1986
125720591257205919 ~1988
12572137754328238 ~1988
12572291251445838 ~1986
12572377754342638 ~1988
12572663251453278 ~1986
12573059251461198 ~1986
12573437754406238 ~1988
12573601754416078 ~1988
125736372011781939 ~1989
12573959251479198 ~1986
12574141128256238310 ~1991
125752631257526319 ~1988
12575317754519038 ~1988
Exponent Prime Factor Digits Year
12575471251509438 ~1986
12575831251516638 ~1986
12576023251520478 ~1986
12576491251529838 ~1986
12576611251532238 ~1986
125775771006206179 ~1988
12577931251558638 ~1986
12578063251561278 ~1986
12578603251572078 ~1986
12579239251584798 ~1986
125796174780254479 ~1990
125797731761168239 ~1988
125799471006395779 ~1988
125804991006439939 ~1988
125805915032236419 ~1990
12580837754850238 ~1988
12580871251617438 ~1986
125810831258108319 ~1988
12581111251622238 ~1986
12581183251623678 ~1986
12581291251625838 ~1986
12581339251626798 ~1986
12581693754901598 ~1988
12581879251637598 ~1986
12581977754918638 ~1988
Exponent Prime Factor Digits Year
12582263251645278 ~1986
12582659251653198 ~1986
125827971006623779 ~1988
125829672013274739 ~1989
12583211251664238 ~1986
125833271258332719 ~1988
12583379251667598 ~1986
12583463251669278 ~1986
125835111006680899 ~1988
12583523251670478 ~1986
12583583251671678 ~1986
12583891113255019110 ~1990
12583979251679598 ~1986
12584219251684398 ~1986
12584531251690638 ~1986
12584633755077998 ~1988
12585061755103678 ~1988
125856793020562979 ~1989
12585731251714638 ~1986
12586019251720398 ~1986
125861991006895939 ~1988
125862431258624319 ~1988
12586523251730478 ~1986
12586571251731438 ~1986
125866192265591439 ~1989
Exponent Prime Factor Digits Year
125869971006959779 ~1988
12587111251742238 ~1986
12587219251744398 ~1986
12587303251746078 ~1986
12587521755251278 ~1988
12587843251756878 ~1986
12587903251758078 ~1986
12587951251759038 ~1986
12588239251764798 ~1986
12588311251766238 ~1986
12589261755355678 ~1988
125908192266347439 ~1989
12590951251819038 ~1986
12591431251828638 ~1986
12591479251829598 ~1986
12591503251830078 ~1986
12591563251831278 ~1986
125915833021979939 ~1989
12591977755518638 ~1988
12592403251848078 ~1986
125924571007396579 ~1988
12592889302229336110 ~1992
12592997755579838 ~1988
12593051251861038 ~1986
12593101755586078 ~1988
1144
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25-06-01