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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
666228076662280719 ~1994
666233631332467279 ~1992
666243796662437919 ~1994
666251991332503999 ~1992
666252111332504239 ~1992
666252973997517839 ~1993
666253733997522399 ~1993
666253791332507599 ~1992
666263631332527279 ~1992
666275773997654639 ~1993
666287813997726879 ~1993
666289311332578639 ~1992
666313191332626399 ~1992
666319791332639599 ~1992
66632303333161515110 ~1996
666325191332650399 ~1992
666325431332650879 ~1992
666327111332654239 ~1992
666328973997973839 ~1993
666328975330631779
666332991332665999 ~1992
666334911332669839 ~1992
666337191332674399 ~1992
666340311332680639 ~1992
666349431332698879 ~1992
Exponent Prime Factor Digits Year
666353391332706799 ~1992
666366831332733679 ~1992
666375231332750479 ~1992
666385311332770639 ~1992
666410275331282179 ~1994
666412615331300899 ~1994
666427311332854639 ~1992
666440939330173039 ~1994
666446631332893279 ~1992
666464031332928079 ~1992
66649591266598364110 ~1995
666517191333034399 ~1992
666517975332143779 ~1994
666537711333075439 ~1992
666547791333095599 ~1992
666564231333128479 ~1992
66657307119983152710 ~1994
666578031333156079 ~1992
666602631333205279 ~1992
666610791333221599 ~1992
666637431333274879 ~1992
666649191333298399 ~1992
666663111333326239 ~1992
666690591333381199 ~1992
666694814000168879 ~1993
Exponent Prime Factor Digits Year
666714591333429199 ~1992
666719391333438799 ~1992
66673471706738792710 ~1996
666748431333496879 ~1992
666765591333531199 ~1992
666773991333547999 ~1992
666782031333564079 ~1992
666782631333565279 ~1992
666784311333568639 ~1992
666799139335187839 ~1994
666819111333638239 ~1992
666834231333668479 ~1992
666856311333712639 ~1992
66687811106700497710 ~1994
666886191333772399 ~1992
666899991333799999 ~1992
666915111333830239 ~1992
666937014001622079 ~1993
666951174001707039 ~1993
666955431333910879 ~1992
666992631333985279 ~1992
667005734002034399 ~1993
667011014002066079 ~1993
667021915336175299 ~1994
667036014002216079 ~1993
Exponent Prime Factor Digits Year
667037511334075039 ~1992
667044831334089679 ~1992
667057814002346879 ~1993
667097236670972319 ~1994
667098591334197199 ~1992
667102214002613279 ~1993
66712189800546268110 ~1996
667129911334259839 ~1992
667136511334273039 ~1992
66714013146770828710 ~1995
667165191334330399 ~1992
667165791334331599 ~1992
667172631334345279 ~1992
667180214003081279 ~1993
667189791334379599 ~1992
667192911334385839 ~1992
667207431334414879 ~1992
667230711334461439 ~1992
667239111334478239 ~1992
66724531120104155910 ~1994
667246495337971939 ~1994
667250031334500079 ~1992
667283391334566799 ~1992
667291911334583839 ~1992
667305711334611439 ~1992
2192
GIMPS The Prime Pages FactorDb.com
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25-04-13