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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
9666131193322638 ~1986
9666277579976638 ~1987
96663132899893919 ~1988
9666401773312098 ~1987
9666533579991998 ~1987
9666551193331038 ~1986
96671872320124899 ~1988
96673932126826479 ~1988
9667421773393698 ~1987
9667667773413378 ~1987
9667837580070238 ~1987
9667919193358398 ~1986
9667993580079598 ~1987
9668003193360078 ~1986
9668051193361038 ~1986
9668081580084878 ~1987
9668293580097598 ~1987
9668471193369438 ~1986
9668819193376398 ~1986
9668999193379998 ~1986
9669031966903118 ~1987
9669041580142478 ~1987
9669113580146798 ~1987
9669137773530978 ~1987
9669329773546338 ~1987
Exp. Prime Factor Digits Year
9669377580162638 ~1987
96695932320702339 ~1988
9669623193392478 ~1986
9670019193400398 ~1986
9670163193403278 ~1986
9670319193406398 ~1986
9670457580227438 ~1987
96707471740734479 ~1988
9670993580259598 ~1987
9671021580261278 ~1987
9671099193421998 ~1986
9671303193426078 ~1986
9671771193435438 ~1986
9672077580324638 ~1987
9672359193447198 ~1986
9672419193448398 ~1986
96724371354141199 ~1988
9672493580349598 ~1987
9672941773835298 ~1987
9673343193466878 ~1986
9673439193468798 ~1986
9673481580408878 ~1987
9673511193470238 ~1986
96735972321663299 ~1988
9673801580428078 ~1987
Exp. Prime Factor Digits Year
9673871193477438 ~1986
9674039193480798 ~1986
9674257580455438 ~1987
9674459193489198 ~1986
9674521580471278 ~1987
9674557580473438 ~1987
9674579193491598 ~1986
9675059193501198 ~1986
96751095224558879 ~1989
9675137580508238 ~1987
9675293580517598 ~1987
9675557580533438 ~1987
9675761580545678 ~1987
9675761774060898
96758571354619999 ~1988
9675863193517278 ~1986
9676001580560078 ~1987
9676091193521838 ~1986
96768891354764479 ~1988
96771911741894399 ~1988
96772811548364979 ~1988
96772933870917219 ~1989
9678013580680798 ~1987
9678131193562638 ~1986
9678181580690878 ~1987
Exp. Prime Factor Digits Year
9678197580691838 ~1987
9678271967827118 ~1987
9678323193566478 ~1986
9678517580711038 ~1987
9678857580731438 ~1987
9678863193577278 ~1986
9678947774315778 ~1987
96791471548663539 ~1988
9679513580770798 ~1987
9679597580775838 ~1987
9679679193593598 ~1986
9679811193596238 ~1986
9679871774389698 ~1987
9680129774410338 ~1987
9680483193609678 ~1986
9680579193611598 ~1986
9680641580838478 ~1987
9680843193616878 ~1986
9680903193618078 ~1986
96809693678768239 ~1989
9681071193621438 ~1986
9681097580865838 ~1987
9681341580880478 ~1987
9681443193628878 ~1986
9681613580896798 ~1987
1043
GIMPS The Prime Pages FactorDb.com
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26-03-08