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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
7838321627065698 ~1986
78386871410963679 ~1987
7838879156777598 ~1985
7838893470333598 ~1986
7839017627121378 ~1986
7839121470347278 ~1986
7839131156782638 ~1985
7839137627130978 ~1986
7839199783919918 ~1987
7839263156785278 ~1985
7839479156789598 ~1985
7839493470369598 ~1986
78395111411111999 ~1987
7839641470378478 ~1986
7839719156794398 ~1985
7839911627192898 ~1986
7840271156805438 ~1985
7840439156808798 ~1985
7840523156810478 ~1985
7840691156813838 ~1985
7841219627297538 ~1986
78416771254668339 ~1987
7841759627340738 ~1986
78420311254724979 ~1987
7842119156842398 ~1985
Exp. Prime Factor Digits Year
7842533470551998 ~1986
7842713470562798 ~1986
7843271156865438 ~1985
7843331156866638 ~1985
7843343156866878 ~1985
7843439627475138 ~1986
78436091725593999 ~1987
7843657470619438 ~1986
7843679156873598 ~1985
78436791882482979
78436912039359679 ~1988
7843763156875278 ~1985
7843799156875998 ~1985
7843861470631678 ~1986
7844183156883678 ~1985
7844393470663598 ~1986
78446711412040799 ~1987
7844833470689998 ~1986
7844849627587938 ~1986
78449571098293999 ~1987
7845011156900238 ~1985
7845059156901198 ~1985
7845137470708238 ~1986
7845269627621538 ~1986
78453291098346079 ~1987
Exp. Prime Factor Digits Year
7845413470724798 ~1986
78454371098361199 ~1987
7845647627651778 ~1986
7845671156913438 ~1985
7845899627671938 ~1986
78462731726180079 ~1987
7846463156929278 ~1985
7846523156930478 ~1985
7846547627723778 ~1986
7846739156934798 ~1985
78467572354027119 ~1988
7846763156935278 ~1985
78467993295655599 ~1988
7846889627751138 ~1986
78469613766541299 ~1988
7847039156940798 ~1985
7847051627764098 ~1986
7847291627783298 ~1986
78474071883377699 ~1987
7847507627800578 ~1986
7847579627806338 ~1986
7847633470857998 ~1986
7847641193051968710 ~1990
7847699156953998 ~1985
78480735493651119 ~1989
Exp. Prime Factor Digits Year
78481331255701299 ~1987
7848227627858178 ~1986
7848251156965038 ~1985
7848437627874978 ~1986
7848601470916078 ~1986
78487492354624719 ~1988
78487612354628319 ~1988
78489435023323539 ~1989
7849031156980638 ~1985
7849351784935118 ~1987
7849811156996238 ~1985
7850411157008238 ~1985
7850891157017838 ~1985
78508911413160399
7850963157019278 ~1985
7851113471066798 ~1986
78512931099181039 ~1987
7851359157027198 ~1985
78514571256233139 ~1987
7851461471087678 ~1986
7851653471099198 ~1986
7851719157034398 ~1985
7852063102076819110 ~1989
78521291727468399 ~1987
7852309174321259910 ~1990
923
GIMPS The Prime Pages FactorDb.com
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26-03-15