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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
639560031279120079 ~1992
639562191279124399 ~1992
639590391279180799 ~1992
639591013837546079 ~1993
639601191279202399 ~1992
639608391279216799 ~1992
639634791279269599 ~1992
639641511279283039 ~1992
639643373837860239 ~1993
639650031279300079 ~1992
639658791279317599 ~1992
639670191279340399 ~1992
639713875117710979 ~1993
639743631279487279 ~1992
639755631279511279 ~1992
639758391279516799 ~1992
639761095118088739 ~1993
639800991279601999 ~1992
639806716398067119 ~1994
639810591279621199 ~1992
639811431279622879 ~1992
639816111279632239 ~1992
63982531102372049710 ~1994
639844911279689839 ~1992
639849711279699439 ~1992
Exponent Prime Factor Digits Year
63986497102378395310 ~1994
639898791279797599 ~1992
639948831279897679 ~1992
639963711279927439 ~1992
639966591279933199 ~1992
639979911279959839 ~1992
639992631279985279 ~1992
639995991279991999 ~1992
639996711279993439 ~1992
640009615120076899 ~1993
640011591280023199 ~1992
640032173840193039 ~1993
64004833140810632710 ~1994
640070391280140799 ~1992
6400805338404831800112 ~2000
640124933840749599 ~1993
640132911280265839 ~1992
640136391280272799 ~1992
640143831280287679 ~1992
640153311280306639 ~1992
640155591280311199 ~1992
640156311280312639 ~1992
640161591280323199 ~1992
640190031280380079 ~1992
640207396402073919 ~1994
Exponent Prime Factor Digits Year
640208391280416799 ~1992
64021189140846615910 ~1994
64021781806674440710 ~1996
640245111280490239 ~1992
640249311280498639 ~1992
640259991280519999 ~1992
640266591280533199 ~1992
640273911280547839 ~1992
640282311280564639 ~1992
640305111280610239 ~1992
640307511280615039 ~1992
640308591280617199 ~1992
640313215122505699 ~1993
64033303153679927310 ~1995
640348791280697599 ~1992
640350173842101039 ~1993
6403751310758302184112 ~1999
640376511280753039 ~1992
640380533842283199 ~1993
640382773842296639 ~1993
640392591280785199 ~1992
640394391280788799 ~1992
640408133842448799 ~1993
64041391102466225710 ~1994
640424533842547199 ~1993
Exponent Prime Factor Digits Year
640428711280857439 ~1992
640439511280879039 ~1992
640441191280882399 ~1992
640469031280938079 ~1992
640483311280966639 ~1992
640487631280975279 ~1992
640488231280976479 ~1992
640509711281019439 ~1992
640517836405178319 ~1994
640558911281117839 ~1992
640572231281144479 ~1992
640573191281146399 ~1992
640578491537388376111 ~1997
640587591281175199 ~1992
640588431281176879 ~1992
640596831281193679 ~1992
640600495124803939 ~1993
640603075124824579 ~1993
640632831281265679 ~1992
64065451102504721710 ~1994
640657333843943999 ~1993
640705791281411599 ~1992
640707613844245679 ~1993
640720973844325839 ~1993
640721031281442079 ~1992
2174
GIMPS The Prime Pages FactorDb.com
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25-04-20