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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
15257017915421038 ~1988
15257591305151838 ~1987
15257603305152078 ~1987
15257917915475038 ~1988
15258017915481038 ~1988
15258203305164078 ~1987
15258251305165038 ~1987
15258791305175838 ~1987
15258983305179678 ~1987
152592891220743139 ~1989
15259691305193838 ~1987
15259901915594078 ~1988
152600831526008319 ~1989
15260099305201998 ~1987
15260111305202238 ~1987
15260183305203678 ~1987
15260213915612798 ~1988
15260579305211598 ~1987
152609231526092319 ~1989
15260939305218798 ~1987
152609773662634499 ~1990
15261133915667998 ~1988
15261203305224078 ~1987
152614871526148719 ~1989
15261539305230798 ~1987
Exponent Prime Factor Digits Year
15261899305237998 ~1987
152619791526197919 ~1989
152621571220972579 ~1989
152622171220977379 ~1989
15263063305261278 ~1987
15263159305263198 ~1987
15263519305270398 ~1987
15263663305273278 ~1987
15263723305274478 ~1987
15263771305275438 ~1987
152637791526377919 ~1989
152639571221116579 ~1989
15264083305281678 ~1987
152642871221142979 ~1989
15264311305286238 ~1987
152643291221146339 ~1989
15264611305292238 ~1987
15264839305296798 ~1987
152651211221209699 ~1989
15265163305303278 ~1987
152653511526535119 ~1989
15265511305310238 ~1987
15266183305323678 ~1987
152663712442619379 ~1989
15266423305328478 ~1987
Exponent Prime Factor Digits Year
15266501915990078 ~1988
152665991526659919 ~1989
15266651305333038 ~1987
15267181916030878 ~1988
15267443305348878 ~1987
15267743305354878 ~1987
15267817916069038 ~1988
152680511526805119 ~1989
152681091221448739 ~1989
15268283305365678 ~1987
15268633916117998 ~1988
15268691305373838 ~1987
15268811305376238 ~1987
152688711221509699 ~1989
15269279305385598 ~1987
152692971221543779 ~1989
152695371221562979 ~1989
15269543305390878 ~1987
15269603305392078 ~1987
152699091221592739 ~1989
15270239305404798 ~1987
15270659305413198 ~1987
15270821916249278 ~1988
15271013109951293710 ~1991
15271463305429278 ~1987
Exponent Prime Factor Digits Year
15271799305435998 ~1987
15271859305437198 ~1987
15272303305446078 ~1987
15272963305459278 ~1987
15273061400154198310 ~1992
1527327713599325840912 ~1996
152733312749199599 ~1989
15273971305479438 ~1987
152740191221921539 ~1989
15274153916449198 ~1988
15274621916477278 ~1988
15275471305509438 ~1987
15276203305524078 ~1987
15276263305525278 ~1987
15276539305530798 ~1987
15276791305535838 ~1987
15276923305538478 ~1987
15277019305540398 ~1987
15277043305540878 ~1987
15277103305542078 ~1987
15277259305545198 ~1987
152772591222180739
15277343305546878 ~1987
152782132138949839 ~1989
15278591305571838 ~1987
1263
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25-07-08