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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.
Exp. Prime Factor Digits Year
3983401876348238 ~1985
398347179669437 ~1983
3983873239032398 ~1984
3983873557742238
3983981318718498 ~1984
3983983398398318 ~1984
3984133637461298 ~1985
39841992310835439 ~1986
39842293107698639 ~1986
3984293239057598 ~1984
3984317318745378 ~1984
398447979689597 ~1983
398473179694637 ~1983
3984917239095038 ~1984
39849411275181139 ~1986
398497179699437 ~1983
398498379699677 ~1983
3985031318802498 ~1984
3985237637637938 ~1985
3985277557938798 ~1985
3985433239125998 ~1984
3985549876820798 ~1985
3985621239137278 ~1984
3985903398590318 ~1984
3985999717479838 ~1985
Exp. Prime Factor Digits Year
398605179721037 ~1983
3986231717521598 ~1985
3986263398626318 ~1984
3986273239176398 ~1984
3986513239190798 ~1984
3986531318922498 ~1984
398666379733277 ~1983
39866771185637739911 ~1990
398671179734237 ~1983
398677179735437 ~1983
3986953239217198 ~1984
3987167318973378 ~1984
3987199717695838 ~1985
39872271036679039 ~1985
39873532870894179 ~1986
398755179751037 ~1983
3987677319014178 ~1984
39877917018512179 ~1987
3987799398779918 ~1984
3987887319030978 ~1984
3987931398793118 ~1984
3987937239276238 ~1984
3987937638069938
3988021239281278 ~1984
398815179763037 ~1983
Exp. Prime Factor Digits Year
3988213638114098 ~1985
39882971196489119 ~1985
398833179766637 ~1983
398840379768077 ~1983
3988433558380638 ~1985
3988451319076098 ~1984
3988627398862718 ~1984
3988627638180338
398864379772877 ~1983
3988661239319678 ~1984
3988771717978798 ~1985
39887811196634319 ~1985
39889911037137679 ~1985
3989039319123138 ~1984
3989119398911918 ~1984
398912379782477 ~1983
398915979783197 ~1983
398917179783437 ~1983
39892433191394419 ~1986
3989471319157698 ~1984
3989653239379198 ~1984
398983179796637 ~1983
3990179718232238 ~1985
3990241239414478 ~1984
3990281319222498 ~1984
Exp. Prime Factor Digits Year
3990353239421198 ~1984
3990353558649438
39903732793261119 ~1986
3990451399045118 ~1984
39904513272169839
3990509558671278 ~1985
39905932234732099 ~1986
3991051399105118 ~1984
39912232235084899 ~1986
39915431596617219 ~1986
3991609957986178 ~1985
399167979833597 ~1983
39916811836173279 ~1986
3991807399180718 ~1984
3991817239509038 ~1984
3991829319346338 ~1984
3991993239519598 ~1984
3991997319359778 ~1984
3992057958093698 ~1985
399229179845837 ~1983
3992327319386178 ~1984
3992377239542638 ~1984
3992381319390498 ~1984
399251979850397 ~1983
3992627319410178 ~1984
615
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26-03-29