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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
25178519503570398 ~1989
25179179503583598 ~1989
25179971503599438 ~1989
25180679503613598 ~1989
25180751503615038 ~1989
25181291503625838 ~1989
25181363503627278 ~1989
25182383503647678 ~1989
25182611503652238 ~1989
251827676547519439 ~1992
25182851503657038 ~1989
251832411510994479 ~1990
25184039503680798 ~1989
25184279503685598 ~1989
25184723503694478 ~1989
25184759503695198 ~1989
251848514029576179 ~1991
25185119503702398 ~1989
25185179125925895110 ~1992
251855093525971279 ~1991
25186211503724238 ~1989
25186823503736478 ~1989
25187003503740078 ~1989
25187171503743438 ~1989
25187303503746078 ~1989
Exponent Prime Factor Digits Year
25187339503746798 ~1989
25188539503770798 ~1989
25189691503793838 ~1989
25190003503800078 ~1989
251901892015215139 ~1990
251907011511442079 ~1990
25190723503814478 ~1989
25190771503815438 ~1989
25190843503816878 ~1989
25191503503830078 ~1989
25191863503837278 ~1989
25192031503840638 ~1989
251922412015379299 ~1990
25192571503851438 ~1989
25193939503878798 ~1989
251942171511653039 ~1990
251943072519430719 ~1990
25194419503888398 ~1989
25195211503904238 ~1989
25195559503911198 ~1989
25195799503915998 ~1989
25195991503919838 ~1989
25196291503925838 ~1989
25196543503930878 ~1989
25196651503933038 ~1989
Exponent Prime Factor Digits Year
25197131503942638 ~1989
25197251503945038 ~1989
25197299503945998 ~1989
251976773527674799 ~1991
251977131511862799 ~1990
25197803503956078 ~1989
25197899503957998 ~1989
25198571503971438 ~1989
25198583503971678 ~1989
25198763503975278 ~1989
25198919503978398 ~1989
251994114535893999 ~1991
25200359504007198 ~1989
252004914536088399 ~1991
252006072520060719 ~1990
252023571512141439 ~1990
252023771512142639 ~1990
25202543504050878 ~1989
252026512016212099 ~1990
25203127569590670310 ~1994
25203803504076078 ~1989
252040992520409919 ~1990
252050931512305599 ~1990
252051072520510719 ~1990
252051611512309679 ~1990
Exponent Prime Factor Digits Year
25205651504113038 ~1989
25206011504120238 ~1989
25206059504121198 ~1989
25206143504122878 ~1989
25206281398259239910 ~1993
252076217562286319 ~1992
25207751504155038 ~1989
25208819504176398 ~1989
25209071504181438 ~1989
25209539504190798 ~1989
25210151504203038 ~1989
25210799504215998 ~1989
25211099504221998 ~1989
252112811512676879 ~1990
25211723504234478 ~1989
25211891504237838 ~1989
25212251504245038 ~1989
252122832521228319 ~1990
25213211504264238 ~1989
25213739504274798 ~1989
25213763504275278 ~1989
25214219504284398 ~1989
25214363504287278 ~1989
25214699504293998 ~1989
25214879504297598 ~1989
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25-04-13