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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
27980363559607278 ~1989
27980411559608238 ~1989
27980531559610638 ~1989
27980591559611838 ~1989
27980999559619998 ~1989
27981071559621438 ~1989
279810771678864639 ~1990
27981263559625278 ~1989
27982523559650478 ~1989
279828112238624899 ~1991
27983531559670638 ~1989
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
Exponent Prime Factor Digits Year
27987611559752238 ~1989
27988091559761838 ~1989
27988403559768078 ~1989
27988703559774078 ~1989
27988991559779838 ~1989
27989231559784638 ~1989
27989491117555862310 ~1992
27989711559794238 ~1989
27990071559801438 ~1989
27991763559835278 ~1989
27992171559843438 ~1989
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
Exponent Prime Factor Digits Year
27996659559933198 ~1989
27996779559935598 ~1989
27997199559943998 ~1989
27997943559958878 ~1989
279982611679895679 ~1990
27998423559968478 ~1989
27999539559990798 ~1989
27999791559995838 ~1989
27999883111999532110 ~1992
27999899559997998 ~1989
28000019560000398 ~1989
28000187134400897710 ~1993
28000463560009278 ~1989
28001651560033038 ~1989
28002479560049598 ~1989
28002671560053438 ~1989
280028239520959839 ~1992
28003439560068798 ~1989
28003499560069998 ~1989
28003823560076478 ~1989
28003883560077678 ~1989
280044472240355779 ~1991
28004939560098798 ~1989
280049872240398979 ~1991
28005011560100238 ~1989
Exponent Prime Factor Digits Year
28005023560100478 ~1989
28005203560104078 ~1989
28005839560116798 ~1989
280059171680355039 ~1990
28006177112024708110 ~1992
28006679560133598 ~1989
28007471560149438 ~1989
28007711560154238 ~1989
280077112240616899
280082171680493039 ~1990
28008551560171038 ~1989
28009139560182798 ~1989
28009199560183998 ~1989
28009343560186878 ~1989
28010459560209198 ~1989
28010771560215438 ~1989
28010819560216398 ~1989
280108331680649999 ~1990
28011023560220478 ~1989
280112276722694499 ~1992
280119131680714799 ~1990
28012031560240638 ~1989
28013423560268478 ~1989
280135096723242179 ~1992
28013519560270398 ~1989
1663
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25-04-13