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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
64528211419620639 ~1987
6452893387173598 ~1985
64528931548694339
6453137516250978 ~1986
6453263129065278 ~1984
64534632194177439 ~1987
6453493387209598 ~1985
6453497516279778 ~1986
64536475808282319 ~1988
6453661387219678 ~1985
64539891548957379 ~1987
64540311161725599 ~1987
6454121516329698 ~1986
6454223129084478 ~1984
6454403129088078 ~1984
6454517387271038 ~1985
6454523129090478 ~1984
6454619516369538 ~1986
6454667516373378 ~1986
6454709516376738 ~1986
6455063129101278 ~1984
64551011032816179 ~1986
64552331032837299 ~1986
6455473387328398 ~1985
6455539645553918 ~1986
Exp. Prime Factor Digits Year
6455857387351438 ~1985
64560111678562879 ~1987
6456239129124798 ~1984
64562711162128799 ~1987
6456287516502978 ~1986
6456421387385278 ~1985
6456427645642718 ~1986
6456563129131278 ~1984
6456623129132478 ~1984
6456641387398478 ~1985
6456679645667918 ~1986
64567271549614499 ~1987
64569713099346099 ~1988
6457013387420798 ~1985
6457079129141598 ~1984
64571091042177392711 ~1991
6457261387435678 ~1985
6457631129152638 ~1984
6457861387471678 ~1985
6457877387472638 ~1985
6457877904102798
6457991129159838 ~1984
6458339129166798 ~1984
64583391162501039
6458399516671938 ~1986
Exp. Prime Factor Digits Year
6458437387506238 ~1985
64585631033370099 ~1986
6458801387528078 ~1985
64589232196033839 ~1987
6459029516722338 ~1986
6459307645930718 ~1986
6459443129188878 ~1984
6459493387569598 ~1985
6459683129193678 ~1984
6459731129194638 ~1984
6459823645982318 ~1986
6459863129197278 ~1984
64600313100814899 ~1988
6460331516826498 ~1986
6460453387627198 ~1985
6460577387634638 ~1985
6460873387652398 ~1985
6460967516877378 ~1986
6461341387680478 ~1985
64614011033824179 ~1986
6461407646140718 ~1986
64615631550775139 ~1987
6461657387699438 ~1985
6461891129237838 ~1984
6461951129239038 ~1984
Exp. Prime Factor Digits Year
64619533489454639 ~1988
6462061387723678 ~1985
6462101387726078 ~1985
6462319646231918 ~1986
6462593387755598 ~1985
6462607646260718 ~1986
6462671129253438 ~1984
6462811646281118 ~1986
6462893387773598 ~1985
6463139129262798 ~1984
6463603646360318 ~1986
6463739129274798 ~1984
6463811517104898 ~1986
6463871129277438 ~1984
6463883129277678 ~1984
6463973387838398 ~1985
6463991129279838 ~1984
6464201387852078 ~1985
6464377387862638 ~1985
6464519129290398 ~1984
6464891129297838 ~1984
6465013387900798 ~1985
6465497517239778 ~1986
6465551129311038 ~1984
6465581517246498 ~1986
817
GIMPS The Prime Pages FactorDb.com
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26-01-11