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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
12519971250399438 ~1986
12520379250407598 ~1986
12520451250409038 ~1986
12520643250412878 ~1986
12520691250413838 ~1986
12520777751246638 ~1988
12520777120199459310
12520811250416238 ~1986
12520883250417678 ~1986
12521101751266078 ~1988
12521233751273998 ~1988
12521339250426798 ~1986
12521581751294878 ~1988
12521903250438078 ~1986
12522017751321038 ~1988
12522157751329438 ~1988
12522173751330398 ~1988
125223792254028239 ~1989
12522563250451278 ~1986
125225993005423779 ~1989
12522743250454878 ~1986
12523151250463038 ~1986
125232411001859299 ~1988
12523417751405038 ~1988
12523481751408878 ~1988
Exponent Prime Factor Digits Year
12523499250469998 ~1986
125234991001879939
125235076011283379 ~1990
12523559250471198 ~1986
12523681751420878 ~1988
12523739250474798 ~1986
125238771001910179 ~1988
125243214759241999 ~1990
12524399250487998 ~1986
12524453751467198 ~1988
125246478015774099 ~1990
12524663250493278 ~1986
12525113751506798 ~1988
12525301751518078 ~1988
12525563250511278 ~1986
125258418768088719 ~1990
12525881751552878 ~1988
125259118267101279 ~1990
125260391252603919 ~1988
125260512004168179 ~1989
12526259250525198 ~1986
12526537751592238 ~1988
12526561751593678 ~1988
12526571250531438 ~1986
12526583250531678 ~1986
Exponent Prime Factor Digits Year
12526621751597278 ~1988
12526961751617678 ~1988
125274673006592099 ~1989
12527573751654398 ~1988
12528161751689678 ~1988
125284491002275939 ~1988
12528563250571278 ~1986
12528653751719198 ~1988
125289132004626099 ~1989
12529271250585438 ~1986
12529631250592638 ~1986
12530099250601998 ~1986
12530123250602478 ~1986
12530159250603198 ~1986
12530183250603678 ~1986
12530783250615678 ~1986
12531041751862478 ~1988
12531131250622638 ~1986
12531671250633438 ~1986
12532763250655278 ~1986
12533051250661038 ~1986
12533117751987038 ~1988
12533123250662478 ~1986
12533441752006478 ~1988
125335011002680099 ~1988
Exponent Prime Factor Digits Year
125335014010720339
12533831250676638 ~1986
12534143250682878 ~1986
12534239250684798 ~1986
12534311250686238 ~1986
12534637752078238 ~1988
12535357752121438 ~1988
12535373752122398 ~1988
12535423200566768110 ~1991
12535643250712878 ~1986
12535751250715038 ~1986
12535823250716478 ~1986
125358432005734899 ~1989
12535871250717438 ~1986
12536159250723198 ~1986
125362911002903299 ~1988
12536339250726798 ~1986
12536351250727038 ~1986
12537013752220798 ~1988
125370891755192479 ~1989
125371011002968099 ~1988
12537443250748878 ~1986
12537601752256078 ~1988
125376311253763119 ~1988
12537683250753678 ~1986
1201
GIMPS The Prime Pages FactorDb.com
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26-03-08