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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
189520971137125839 ~1989
18952403379048078 ~1988
18952799379055998 ~1988
18953639379072798 ~1988
189540171516321379 ~1989
18954203379084078 ~1988
18954263379085278 ~1988
189544971516359779 ~1989
18954839379096798 ~1988
18955463379109278 ~1988
18955619379112398 ~1988
189558011137348079 ~1989
189564611137387679 ~1989
18956579379131598 ~1988
18956711379134238 ~1988
18956771379135438 ~1988
18956831379136638 ~1988
18957131379142638 ~1988
189577211137463279 ~1989
18957863379157278 ~1988
18958091379161838 ~1988
18958151379163038 ~1988
18958991379179838 ~1988
18959051379181038 ~1988
18959123379182478 ~1988
Exponent Prime Factor Digits Year
18959483379189678 ~1988
189596394550313379 ~1990
189601331137607999 ~1989
189604671516837379 ~1989
18960563379211278 ~1988
18960857106180799310 ~1991
189611691516893539 ~1989
18961643379232878 ~1988
189624311896243119 ~1990
189624731137748399 ~1989
18962941360295879110 ~1993
18963179379263598 ~1988
18963557147915744710 ~1992
189637611517100899 ~1989
18964691379293838 ~1988
18964931379298638 ~1988
189656474551755299 ~1990
18965789648629983910 ~1993
18966011379320238 ~1988
18966539379330798 ~1988
18967211379344238 ~1988
18967391379347838 ~1988
18967451379349038 ~1988
189676071517408579 ~1989
189682311517458499 ~1989
Exponent Prime Factor Digits Year
189685611517484899 ~1989
189690772655670799 ~1990
18969487292130099910 ~1992
18969803379396078 ~1988
189698771138192639 ~1989
18969959379399198 ~1988
189702292655832079 ~1990
18970739379414798 ~1988
18970811379416238 ~1988
18970943379418878 ~1988
189710092655941279 ~1990
18971599166950071310 ~1992
18971759379435198 ~1988
189722711897227119 ~1990
18974519379490398 ~1988
18974591379491838 ~1988
18974639379492798 ~1988
18974951379499038 ~1988
18975311379506238 ~1988
18975419379508398 ~1988
18977279379545598 ~1988
18977303379546078 ~1988
18977351379547038 ~1988
189774733036395699 ~1990
189775334175057279 ~1990
Exponent Prime Factor Digits Year
18977639379552798 ~1988
189778731138672399 ~1989
18977879379557598 ~1988
189780971138685839 ~1989
18978119379562398 ~1988
18978191379563838 ~1988
189784931138709599 ~1989
18978779379575598 ~1988
189789172657048399 ~1990
189795111518360899 ~1989
18980099379601998 ~1988
18980231379604638 ~1988
18980603379612078 ~1988
18981023379620478 ~1988
18981899379637998 ~1988
18983171379663438 ~1988
189837071898370719 ~1990
189838011518704099 ~1989
18983999379679998 ~1988
18984083379681678 ~1988
189841491518731939 ~1989
189844371139066239 ~1989
189844371518754979
18985163379703278 ~1988
18985259379705198 ~1988
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25-05-04