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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
22253183445063678 ~1988
222534176676025119 ~1991
22253519445070398 ~1988
22253723445074478 ~1988
22253879445077598 ~1988
22254059445081198 ~1988
22254119445082398 ~1988
222547334896041279 ~1991
222549371335296239 ~1990
22254959445099198 ~1988
222550971780407779 ~1990
222551091780408739 ~1990
222556571335339439 ~1990
22256231445124638 ~1988
222563091780504739 ~1990
22256483445129678 ~1988
22256603445132078 ~1988
22256879445137598 ~1988
22257503445150078 ~1988
22258199445163998 ~1988
22258343445166878 ~1988
22258679445173598 ~1988
222586971335521839 ~1990
22258919445178398 ~1988
222593811335562879 ~1990
Exponent Prime Factor Digits Year
222598011335588079 ~1990
22259819445196398 ~1988
22260071445201438 ~1988
22260671445213438 ~1988
22260779445215598 ~1988
222608531335651199 ~1990
22261163445223278 ~1988
222613011335678079 ~1990
22261391445227838 ~1988
22261439445228798 ~1988
222615293116614079 ~1990
22262063445241278 ~1988
222620871780966979 ~1990
22262543445250878 ~1988
22262711445254238 ~1988
222630495343131779 ~1991
222637211335823279 ~1990
222640491781123939 ~1990
222640493116966879
222641474007546479 ~1991
22264283445285678 ~1988
22264439445288798 ~1988
22264871445297438 ~1988
222648771335892639 ~1990
22264919445298398 ~1988
Exponent Prime Factor Digits Year
222655611335933679 ~1990
22265723445314478 ~1988
22266371445327438 ~1988
22266383445327678 ~1988
22266911445338238 ~1988
22267103445342078 ~1988
22267319445346398 ~1988
22267523445350478 ~1988
22267643445352878 ~1988
22268219445364398 ~1988
22268483445369678 ~1988
222685031002082635111 ~1994
22269503445390078 ~1988
22269959445399198 ~1988
22270019445400398 ~1988
22270271445405438 ~1988
22270343445406878 ~1988
22270439445408798 ~1988
22270823445416478 ~1988
222709331336255999 ~1990
222716331336297999 ~1990
22271663445433278 ~1988
22272011445440238 ~1988
22272083445441678 ~1988
222722771336336639 ~1990
Exponent Prime Factor Digits Year
222726611336359679 ~1990
22272851445457038 ~1988
22273523445470478 ~1988
22273571445471438 ~1988
222740395345769379 ~1991
22275119445502398 ~1988
222754011782032099 ~1990
22275719445514398 ~1988
222758176682745119 ~1991
22276283445525678 ~1988
222763694900801199 ~1991
222765171782121379 ~1990
222765613564249779 ~1991
222765616682968319
222766632227666319 ~1990
22276703445534078 ~1988
22276823445536478 ~1988
22276931445538638 ~1988
222771535346516739 ~1991
22277831445556638 ~1988
222780711782245699 ~1990
22278299445565998 ~1988
222782991782263939
222784392227843919 ~1990
22278563445571278 ~1988
1581
GIMPS The Prime Pages FactorDb.com
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26-03-15