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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
1239547091247909418310 ~2002
1239669731247933946310 ~2002
12396773993966967676911 ~2005
1239704237743822542310 ~2003
1239706379991765103310 ~2003
1239767051247953410310 ~2002
1239769631247953926310 ~2002
1239911639247982327910 ~2002
1239961013743976607910 ~2003
1239983483247996696710 ~2002
12400275191240027519111 ~2004
12400363131736050838311 ~2004
12400470417688291654311 ~2006
1240050503248010100710 ~2002
1240071671248014334310 ~2002
12401001531736140214311 ~2004
1240106017744063610310 ~2003
1240122263248024452710 ~2002
1240136951248027390310 ~2002
1240176251248035250310 ~2002
1240229273744137563910 ~2003
12403188015705466484711 ~2005
1240387979248077595910 ~2002
1240397771248079554310 ~2002
1240474643248094928710 ~2002
Exponent Prime Factor Digits Year
12404961891736694664711 ~2004
1240509311248101862310 ~2002
1240511113744306667910 ~2003
1240528511992422808910 ~2003
1240534859248106971910 ~2002
1240535651248107130310 ~2002
1240545563248109112710 ~2002
1240585103248117020710 ~2002
1240639919248127983910 ~2002
1240691357744414814310 ~2003
1240719743248143948710 ~2002
1240739459248147891910 ~2002
1240759511248151902310 ~2002
1240824587992659669710 ~2003
1240837583248167516710 ~2002
1240913171248182634310 ~2002
1240935973744561583910 ~2003
1240949441744569664710 ~2003
1240960991248192198310 ~2002
12409849031985575844911 ~2004
1240992611992794088910 ~2003
1241024243248204848710 ~2002
1241044331248208866310 ~2002
1241090113744654067910 ~2003
1241112083248222416710 ~2002
Exponent Prime Factor Digits Year
1241193313744715987910 ~2003
1241258279248251655910 ~2002
1241325443248265088710 ~2002
1241349731248269946310 ~2002
124135810114896297212112 ~2006
1241378531248275706310 ~2002
1241394491248278898310 ~2002
1241408939248281787910 ~2002
1241467499248293499910 ~2002
1241487671248297534310 ~2002
1241500919248300183910 ~2002
12415487332979716959311 ~2005
1241615051993292040910 ~2003
1241647817744988690310 ~2003
1241690533745014319910 ~2003
124170308332780961391312 ~2007
1241754131248350826310 ~2002
1241757743248351548710 ~2002
12417910211986865633711 ~2004
1241806177745083706310 ~2003
1241832563248366512710 ~2002
1241893379248378675910 ~2002
1241896679248379335910 ~2002
1241916479248383295910 ~2002
1241925197745155118310 ~2003
Exponent Prime Factor Digits Year
1241996771248399354310 ~2002
1242003839248400767910 ~2002
1242008177745204906310 ~2003
1242055657745233394310 ~2003
1242064199248412839910 ~2002
12421097111242109711111 ~2004
1242141479248428295910 ~2002
12421711031242171103111 ~2004
1242181441745308864710 ~2003
1242186479248437295910 ~2002
1242204443248440888710 ~2002
1242208873745325323910 ~2003
1242220559248444111910 ~2002
1242243083248448616710 ~2002
1242292823248458564710 ~2002
1242307037745384222310 ~2003
1242334319248466863910 ~2002
12423450195217849079911 ~2005
1242345179248469035910 ~2002
124239992312920959199312 ~2006
12424603211987936513711 ~2004
1242482063248496412710 ~2002
1242490391248498078310 ~2002
1242616337745569802310 ~2003
1242619991248523998310 ~2002
3617
GIMPS The Prime Pages FactorDb.com
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25-06-08