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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.
Exp. Prime Factor Digits Year
91280878762963539 ~1989
9128377547702638 ~1987
9128501547710078 ~1987
9128579182571598 ~1985
9128579730286338
9128653547719198 ~1987
9128681547720878 ~1987
9128681730294498
9128737547724238 ~1987
9128831730306498 ~1987
91289574381899379 ~1989
9129013547740798 ~1987
9129023182580478 ~1985
9129151912915118 ~1987
9129293547757598 ~1987
9129299182585998 ~1985
9129739912973918 ~1987
9129773547786398 ~1987
9129893547793598 ~1987
9129959182599198 ~1985
9130007730400578 ~1987
9130019730401538 ~1987
9130031182600638 ~1985
9130067730405378 ~1987
9130117547807038 ~1987
Exp. Prime Factor Digits Year
9130217547813038 ~1987
9130463182609278 ~1985
9130657547839438 ~1987
9130799182615998 ~1985
9130841547850478 ~1987
9131123182622478 ~1985
9131231182624638 ~1985
9131237547874238 ~1987
9131399182627998 ~1985
9131543182630878 ~1985
9131579182631598 ~1985
9131651182633038 ~1985
9131821124192765710 ~1990
9131939182638798 ~1985
91320417122991999 ~1989
91322091278509279 ~1987
9132251182645038 ~1985
9132317547939038 ~1987
9132577547954638 ~1987
9132743182654878 ~1985
9132923182658478 ~1985
9133031182660638 ~1985
9133183913318318 ~1987
9133717548023038 ~1987
9134249730739938 ~1987
Exp. Prime Factor Digits Year
9134617548077038 ~1987
91346175846154899
9134669730773538 ~1987
9134903182698078 ~1985
91351991644335839 ~1988
9135233548113998 ~1987
91358293654331619 ~1989
9136079182721598 ~1985
9136367730909378 ~1987
9136499182729998 ~1985
9136693548201598 ~1987
9136703182734078 ~1985
91367413654696419 ~1989
91367931279151039 ~1987
9136951913695118 ~1987
91369511461912179
9137053548223198 ~1987
9137099182741998 ~1985
9137173548230398 ~1987
9137339182746798 ~1985
91374593837732799 ~1989
9137501548250078 ~1987
9137573548254398 ~1987
91375732924023379
9137837100516207110 ~1990
Exp. Prime Factor Digits Year
9137893548273598 ~1987
91380295665577999 ~1989
9138131182762638 ~1985
91381692010397199 ~1988
9138289131591361710 ~1990
9138341548300478 ~1987
9138719182774398 ~1985
9138803182776078 ~1985
9138847913884718 ~1987
9138917548335038 ~1987
91390932741727919 ~1988
9139517548371038 ~1987
9139567913956718 ~1987
9139583182791678 ~1985
91396871462349939 ~1988
9139811182796238 ~1985
91398413473139599 ~1989
9139981548398878 ~1987
9140003182800078 ~1985
9140189731215138 ~1987
9140297731223778 ~1987
9140363182807278 ~1985
9140711182814238 ~1985
9140783182815678 ~1985
91410311645385599 ~1988
1010
GIMPS The Prime Pages FactorDb.com
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26-03-15