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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
279667211678003279 ~1990
27966839559336798 ~1989
27966923559338478 ~1989
279673611678041679 ~1990
27967403559348078 ~1989
27967631559352638 ~1989
27967739559354798 ~1989
27967811559356238 ~1989
27968159559363198 ~1989
279686092237488739 ~1991
27968903559378078 ~1989
27969611559392238 ~1989
27969671559393438 ~1989
279697612237580899 ~1991
27969803559396078 ~1989
27969971559399438 ~1989
27970583559411678 ~1989
27971551246149648910 ~1993
27971711559434238 ~1989
27972239559444798 ~1989
27973079559461598 ~1989
27973259559465198 ~1989
27973403117488292710 ~1992
27973703559474078 ~1989
27973943559478878 ~1989
Exponent Prime Factor Digits Year
27974519559490398 ~1989
279746411678478479 ~1990
27974651559493038 ~1989
279747531678485199 ~1990
279763934476222899 ~1991
27976859559537198 ~1989
27976919559538398 ~1989
27977171559543438 ~1989
27977399559547998 ~1989
279778571678671439 ~1990
27979079559581598 ~1989
27979559559591198 ~1989
27979643559592878 ~1989
279800392238403139 ~1991
27980363559607278 ~1989
27980411559608238 ~1989
27980531559610638 ~1989
27980591559611838 ~1989
27980999559619998 ~1989
27981071559621438 ~1989
279810771678864639 ~1990
27981263559625278 ~1989
27982523559650478 ~1989
279828112238624899 ~1991
27983531559670638 ~1989
Exponent Prime Factor Digits Year
27983639559672798 ~1989
27983723559674478 ~1989
27984059559681198 ~1989
279845272238762179 ~1991
279848411679090479 ~1990
27984923559698478 ~1989
27985019559700398 ~1989
27985091559701838 ~1989
27985619559712398 ~1989
27986099559721998 ~1989
27986111559722238 ~1989
27986219559724398 ~1989
27986951559739038 ~1989
27987359559747198 ~1989
27987611559752238 ~1989
27988091559761838 ~1989
27988403559768078 ~1989
27988703559774078 ~1989
27988991559779838 ~1989
27989231559784638 ~1989
27989491117555862310 ~1992
27989711559794238 ~1989
27990071559801438 ~1989
27991763559835278 ~1989
27992171559843438 ~1989
Exponent Prime Factor Digits Year
27992819559856398 ~1989
27992879559857598 ~1989
27993011559860238 ~1989
27993359559867198 ~1989
27994283559885678 ~1989
27994331559886638 ~1989
27994931559898638 ~1989
27995339559906798 ~1989
27995351559907038 ~1989
27995399559907998 ~1989
279956211679737279 ~1990
279958331679749999 ~1990
27996191559923838 ~1989
27996539559930798 ~1989
27996659559933198 ~1989
27996779559935598 ~1989
27997199559943998 ~1989
27997943559958878 ~1989
279982611679895679 ~1990
27998423559968478 ~1989
27999539559990798 ~1989
27999791559995838 ~1989
27999883111999532110 ~1992
27999899559997998 ~1989
28000019560000398 ~1989
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25-05-04