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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
12343817740629038 ~1988
12344411246888238 ~1986
12344543246890878 ~1986
123449091728287279 ~1988
12345143246902878 ~1986
12345191246903838 ~1986
12345433740725998 ~1988
123455392222197039 ~1989
12345743246914878 ~1986
12345863246917278 ~1986
12346511180259060710 ~1991
12346877740812638 ~1988
12347099987767938 ~1988
12347123246942478 ~1986
12347197740831838 ~1988
12347213740832798 ~1988
12347281740836878 ~1988
12347759246955198 ~1986
12347807987824578 ~1988
12347821740869278 ~1988
12348407987872578 ~1988
12348419246968398 ~1986
12348659246973198 ~1986
12348761740925678 ~1988
123488933704667919 ~1989
Exponent Prime Factor Digits Year
12349163246983278 ~1986
12349223246984478 ~1986
12349333740959998 ~1988
123500535681024399 ~1990
12350081741004878 ~1988
12350363247007278 ~1986
12350453741027198 ~1988
12350543247010878 ~1986
12350699247013998 ~1986
12351203247024078 ~1986
12351221988097698 ~1988
12351323247026478 ~1986
12351431247028638 ~1986
12351481741088878 ~1988
12351551247031038 ~1986
12351659247033198 ~1986
12351737741104238 ~1988
123519911976318579 ~1989
12352559247051198 ~1986
12352583247051678 ~1986
12352757741165438 ~1988
12352979247059598 ~1986
12352979988238338
12353051247061038 ~1986
12353137741188238 ~1988
Exponent Prime Factor Digits Year
12353521741211278 ~1988
12353651247073038 ~1986
12353927988314178 ~1988
12354143247082878 ~1986
123545331729634639 ~1988
123546131976738099 ~1989
123546732718028079 ~1989
12354791247095838 ~1986
12354851247097038 ~1986
12354893741293598 ~1988
12354977741298638 ~1988
123550992223917839 ~1989
12355103247102078 ~1986
123551714942068419 ~1990
12355559247111198 ~1986
12355661741339678 ~1988
12355873741352398 ~1988
12356237741374238 ~1988
12356381741382878 ~1988
12356411247128238 ~1986
12356423247128478 ~1986
12356633741397998 ~1988
12356717741403038 ~1988
12356741741404478 ~1988
12356761741405678 ~1988
Exponent Prime Factor Digits Year
123571671060244928711 ~1993
123572292718590399 ~1989
12357421741445278 ~1988
12357743247154878 ~1986
12357797333660519110 ~1992
12358163247163278 ~1986
12358441741506478 ~1988
12358631247172638 ~1986
12358741741524478 ~1988
12359003247180078 ~1986
12359317741559038 ~1988
12359461741567678 ~1988
12359531247190638 ~1986
12359701741582078 ~1988
12359783247195678 ~1986
123599333707979919 ~1989
12360563247211278 ~1986
12360911988872898 ~1988
12360977741658638 ~1988
12361201741672078 ~1988
12361463247229278 ~1986
12361673741700398 ~1988
123617531977880499 ~1989
12361847988947778 ~1988
12362099247241998 ~1986
1187
GIMPS The Prime Pages FactorDb.com
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5.366.787 digits 		e-mail
26-02-08