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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
21353459427069198 ~1988
21353639427072798 ~1988
21353879427077598 ~1988
213547971281287839 ~1989
21355151427103038 ~1988
21355199427103998 ~1988
213558011281348079 ~1989
21357779427155598 ~1988
21357923427158478 ~1988
21358439427168798 ~1988
21359183427183678 ~1988
21360263427205278 ~1988
213606498544259619 ~1991
21360659427213198 ~1988
21361079427221598 ~1988
21361271427225438 ~1988
21361283427225678 ~1988
21361391427227838 ~1988
21362219427244398 ~1988
213626411281758479 ~1989
213630072136300719 ~1990
21363059427261198 ~1988
21363311427266238 ~1988
21363599427271998 ~1988
21363659427273198 ~1988
Exponent Prime Factor Digits Year
213639891709119139 ~1990
213643512136435119 ~1990
21364643427292878 ~1988
21365303427306078 ~1988
21365411427308238 ~1988
213654971281929839 ~1989
213656095127746179 ~1991
213660411281962479 ~1989
21366179427323598 ~1988
21366239427324798 ~1988
21366539427330798 ~1988
21367331427346638 ~1988
213673931282043599 ~1989
21367763427355278 ~1988
21367919427358398 ~1988
21368003427360078 ~1988
21368471427369438 ~1988
213687613419001779 ~1990
21368999427379998 ~1988
21369371427387438 ~1988
21369503427390078 ~1988
213700331282201999 ~1989
21370451427409038 ~1988
213707713419323379 ~1990
21371891427437838 ~1988
Exponent Prime Factor Digits Year
213720672137206719 ~1990
21372503427450078 ~1988
21373397102592305710 ~1992
21373559427471198 ~1988
21373991427479838 ~1988
21374351427487038 ~1988
21374459427489198 ~1988
213750073847501279 ~1991
213751272137512719 ~1990
21376163427523278 ~1988
213761936840381779 ~1991
213762171710097379 ~1990
21376739427534798 ~1988
21377171427543438 ~1988
21377351427547038 ~1988
21377519427550398 ~1988
21377519243703716710
213775931282655599 ~1989
21377651427553038 ~1988
21377771427555438 ~1988
213779473848030479 ~1991
21378023427560478 ~1988
21378491427569838 ~1988
213785416413562319 ~1991
21379271106896355110 ~1992
Exponent Prime Factor Digits Year
21379283427585678 ~1988
21379703427594078 ~1988
21380039427600798 ~1988
21380171427603438 ~1988
21380423427608478 ~1988
213809232138092319 ~1990
213810835131459939 ~1991
213811611282869679 ~1989
21381383427627678 ~1988
21381539427630798 ~1988
21381791427635838 ~1988
213818235131637539 ~1991
213821811710574499 ~1990
21382331427646638 ~1988
21382499427649998 ~1988
21382859427657198 ~1988
21382871427657438 ~1988
21382919427658398 ~1988
21382943427658878 ~1988
21383363427667278 ~1988
21383651427673038 ~1988
21383723427674478 ~1988
21384299427685998 ~1988
21384479427689598 ~1988
21384743427694878 ~1988
1459
GIMPS The Prime Pages FactorDb.com
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25-04-13