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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
1979233913958467839 ~1996
1979278433958556879 ~1996
1979283833958567679 ~1996
1979284313958568639 ~1996
1979303993958607999 ~1996
1979311433958622879 ~1996
197934221118760532710 ~1997
1979415713958831439 ~1996
1979491313958982639 ~1996
1979528033959056079 ~1996
1979596611583677288111 ~2000
1979607833959215679 ~1996
1979694593959389199 ~1996
197973583197973583110 ~1998
1979805713959611439 ~1996
1979816033959632079 ~1996
1979828393959656799 ~1996
1979859233959718479 ~1996
1979917793959835599 ~1996
1979964713959929439 ~1996
1979993693959987380111 ~2001
1980007793960015599 ~1996
1980013433960026879 ~1996
1980123233960246479 ~1996
198018461158414768910 ~1997
Exponent Prime Factor Digits Year
198025433594076299110 ~1999
1980265193960530399 ~1996
198029981158423984910 ~1997
198032663514884923910 ~1999
1980347993960695999 ~1996
198035353118821211910 ~1997
1980360113960720239 ~1996
1980408833960817679 ~1996
198045091356481163910 ~1998
1980518033961036079 ~1996
1980537833961075679 ~1996
198053881118832328710 ~1997
1980567593961135199 ~1996
198057313594171939110 ~1999
198058433118835059910 ~1997
1980594233961188479 ~1996
1980647033961294079 ~1996
1980704033961408079 ~1996
198087881158470304910 ~1997
1980904193961808399 ~1996
1980931913961863839 ~1996
198093241118855944710 ~1997
198093271198093271110 ~1998
1980958193961916399 ~1996
198104021118862412710 ~1997
Exponent Prime Factor Digits Year
1981125713962251439 ~1996
1981131833962263679 ~1996
1981144313962288639 ~1996
1981212713962425439 ~1996
198124679158499743310 ~1997
1981342313962684639 ~1996
198139121118883472710 ~1997
1981438191466264260711 ~2000
1981468313962936639 ~1996
198152897118891738310 ~1997
198153797118892278310 ~1997
1981592393963184799 ~1996
1981667633963335279 ~1996
1981708313963416639 ~1996
1981712033963424079 ~1996
1981799513963599039 ~1996
1981850633963701279 ~1996
1981930913963861839 ~1996
1981972313963944639 ~1996
198205039198205039110 ~1998
1982096633964193279 ~1996
198209899475703757710 ~1998
1982120993964241999 ~1996
198212213118927327910 ~1997
198222961118933776710 ~1997
Exponent Prime Factor Digits Year
198225077753255292710 ~1999
1982261633964523279 ~1996
198226319158581055310 ~1997
1982302433964604879 ~1996
198232091158585672910 ~1997
198232109475757061710 ~1998
1982419193964838399 ~1996
198245581118947348710 ~1997
198249721118949832710 ~1997
1982506913965013839 ~1996
1982561393965122799 ~1996
198258661118955196710 ~1997
1982671313965342639 ~1996
198270209277578292710 ~1998
198280471317248753710 ~1998
198283693317253908910 ~1998
1982905913965811839 ~1996
198291461594874383110 ~1999
1983019193966038399 ~1996
1983065993966131999 ~1996
1983070193966140399 ~1996
1983076913966153839 ~1996
1983177113966354239 ~1996
1983181193966362399 ~1996
1983183833966367679 ~1996
2825
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25-07-08