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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
26611691532233838 ~1989
26612279532245598 ~1989
266122792128982339
26612303532246078 ~1989
266124892128999139 ~1990
26612543532250878 ~1989
26612639532252798 ~1989
26613011532260238 ~1989
26613131532262638 ~1989
266137095855015999 ~1992
266137872661378719 ~1991
26614499532289998 ~1989
26615579532311598 ~1989
26616059532321198 ~1989
26616263532325278 ~1989
266164272661642719 ~1991
26616599532331998 ~1989
26618519532370398 ~1989
266189411597136479 ~1990
26618951532379038 ~1989
26619023532380478 ~1989
26619431532388638 ~1989
26620043532400878 ~1989
266200492129603939 ~1990
26620199532403998 ~1989
Exponent Prime Factor Digits Year
266204211597225279 ~1990
26620571532411438 ~1989
26621363532427278 ~1989
26621519532430398 ~1989
266216272129730179 ~1990
26621899367382206310 ~1993
26622083532441678 ~1989
266222176389332099 ~1992
26622619191682856910 ~1993
266227731597366399 ~1990
26622863532457278 ~1989
26623703532474078 ~1989
26624051532481038 ~1989
266242372129938979 ~1990
26624459532489198 ~1989
26624831532496638 ~1989
266252931597517599 ~1990
26625563532511278 ~1989
266259171597555039 ~1990
26626079532521598 ~1989
266264092130112739 ~1990
266265773727720799 ~1991
26626679532533598 ~1989
266267036390408739 ~1992
26627459532549198 ~1989
Exponent Prime Factor Digits Year
266275072130200579 ~1990
26627519532550398 ~1989
266280472130243779 ~1990
26628071532561438 ~1989
26628323532566478 ~1989
26628359532567198 ~1989
266284492130275939 ~1990
266284632662846319 ~1991
26628839532576798 ~1989
26629019532580398 ~1989
266291811597750879 ~1990
266301714793430799 ~1991
26630339532606798 ~1989
26630759532615198 ~1989
26630783532615678 ~1989
26631431532628638 ~1989
266314331597885999 ~1990
26631659532633198 ~1989
266322531597935199 ~1990
26632283532645678 ~1989
26632457101203336710 ~1992
266325611597953679 ~1990
26633647410158163910 ~1994
266341496392195779 ~1992
266344936392278339 ~1992
Exponent Prime Factor Digits Year
26635139532702798 ~1989
266352674261642739 ~1991
266354512130836099 ~1990
26635643532712878 ~1989
26635799532715998 ~1989
26636171532723438 ~1989
266378592663785919 ~1991
26637899532757998 ~1989
266381812131054499 ~1990
26638343532766878 ~1989
26638571532771438 ~1989
26638751532775038 ~1989
26638823532776478 ~1989
266393211598359279 ~1990
26639939532798798 ~1989
26640487106561948110 ~1992
26640791532815838 ~1989
26640899532817998 ~1989
26641019532820398 ~1989
26641871532837438 ~1989
266425972131407779 ~1990
26642879532857598 ~1989
26643191532863838 ~1989
26643299532865998 ~1989
266434133730077839 ~1991
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25-07-08